Eu -symbol

  1. europium

EU -abbr

  1. European Union

eu- -comb form

  1. well : easily
    • eu clase
  2. good
    • eu daemonism
  3. true
    • eu chromatin

eu·bac·te·ri·um [,yü-bak-'tir-ē-əm] -n, adj

  1. any of the bacteria excluding those included in the archaebacteria or the archaea

eu·ca·lypt ['yü-kə-,lipt] -n

  1. eucalyptus

eu·ca·lyp·tol [,yü-kə-'lip-,tȯl, -,tōl] -n

  1. a liquid C 10H 18O with an odor of camphor that occurs in many essential oils (as of eucalyptus) and is used esp. as an expectorant and flavoring agent called also cineole

eu·ca·lyp·tus [,yü-kə-'lip-təs] -n

  1. any of a genus ( Eucalyptus) of mostly Australian evergreen trees or rarely shrubs of the myrtle family that have rigid entire leaves and umbellate flowers and are widely cultivated for their gums, resins, oils, and woods

eucaryote [(,)yü-'ker-ē-,ōt, -ət, -'ka-rē-] -n, adj

(variant of eukaryote)

  1. any of a domain (Eukarya) or a higher taxonomic group (Eukaryota) above the kingdom that includes organisms composed of one or more cells containing visibly evident nuclei and organelles

Eu·cha·rist ['yü-k(ə-)rəst] -n, adj

  1. communion
  2. spiritual communion with God

eu·chre ['yü-kər] -n

  1. a card game in which each player is dealt five cards and the player making trump must take three tricks to win a hand

euchre [-k(ə-)riŋ] -vt

  1. to prevent from winning three tricks in euchre
  2. cheat, trick
    • euchred out of their life savings -- Pete Martin

eu·chro·ma·tin [(,)yü-'krō-mə-tən] -n, adj

  1. the part of chromatin that is genetically active and is largely composed of genes

eu·clase ['yü-,klās, -,klāz] -n

  1. a mineral that consists of a brittle silicate of beryllium and aluminum in pale yellow, green, or blue prismatic crystals and is used esp. as a gemstone

eu·clid·e·an [yü-'kli-dē-ən] -adj

  1. of, relating to, or based on the geometry of Euclid or a geometry with similar axioms

Euclidean algorithm -n

  1. a method of finding the greatest common divisor of two numbers by dividing the larger by the smaller, the smaller by the remainder, the first remainder by the second remainder, and so on until exact division is obtained whence the greatest common divisor is the exact divisor called also Euclid's algorithm

euclidean geometry -n

  1. geometry based on Euclid's axioms
  2. the geometry of a euclidean space

euclidean space -n

  1. a space in which Euclid's axioms and definitions (as of straight and parallel lines and angles of plane triangles) apply

eu·crite ['yü-,krīt] -n, adj

  1. a stony meteorite composed essentially of plagioclase and pigeonite
  2. a rock consisting of a very basic gabbro

eu·dae·mo·nism [yü-'dē-mə-,ni-zəm] -n, adj

  1. a theory that the highest ethical goal is happiness and personal well-being

eu·di·om·e·ter [,yü-dē-'ä-mə-tər] -n, adj, adv

  1. an instrument for the volumetric measurement and analysis of gases

eu·gen·ic [yü-'je-nik] -adj, adv

  1. relating to or fitted for the production of good offspring
  2. of or relating to eugenics

eu·gen·i·cist [-'je-nə-sist] -n

  1. a student or advocate of eugenics

eu·gen·ics [yü-'je-niks] -n pl but sing in constr

  1. a science that deals with the improvement (as by control of human mating) of hereditary qualities of a race or breed

eu·gen·ist [yü-'je-nist] -n

  1. eugenicist

eu·ge·nol ['yü-jə-,nȯl, -,nōl] -n

  1. a colorless aromatic liquid phenol C 10H 12O 2found esp. in clove oil and used commercially in flavors and perfumes and in dentistry as an analgesic

eu·geo·syn·cline [(,)yü-,jē-ō-'sin-,klīn] -n, adj

  1. a narrow rapidly subsiding geosyncline usu. with volcanic materials mingled with clastic sediments

eu·gle·na [yü-'glē-nə] -n

  1. any of a genus ( Euglena) of green freshwater flagellates often classified as algae

eu·gle·noid [-,nȯid] -n, adj

  1. any of a taxon (Euglenoidina or Euglenophyta) of varied flagellates (as a euglena) that are typically green or colorless stigma-bearing solitary organisms with one or two flagella emerging from a well-defined gullet

euglenoid movement -n

  1. writhing usu. nonprogressive protoplasmic movement of plastic-bodied euglenoid flagellates

eu·glob·u·lin [yü-'glä-byə-lən] -n

  1. a simple protein that does not dissolve in pure water

eu·he·mer·ism [yü-'hē-mə-,ri-zəm, -'he-mə-] -n, adj

  1. interpretation of myths as traditional accounts of historical persons and events

eu·kary·ote [(,)yü-'ker-ē-,ōt, -ət, -'ka-rē-] -n, adj

  1. any of a domain (Eukarya) or a higher taxonomic group (Eukaryota) above the kingdom that includes organisms composed of one or more cells containing visibly evident nuclei and organelles

eu·la·chon ['yü-lə-,kän, -li-kən] -n

  1. candlefish

eu·lo·gise ['yü-lə-,jīz] -vt, n

(variant of eulogize)

  1. to speak or write in high praise of : extol

eu·lo·gist ['yü-lə-jist] -n

  1. one who eulogizes

eu·lo·gi·um [yü-'lō-jē-əm] -n

  1. eulogy

eu·lo·gize ['yü-lə-,jīz] -vt, n

  1. to speak or write in high praise of : extol

eu·lo·gy ['yü-lə-jē] -n, adj, adv

  1. a commendatory oration or writing esp. in honor of one deceased
    • she delivered the eulogy at his funeral
  2. high praise

Eu·men·i·des [yü-'me-nə-,dēz] -n pl

  1. the Furies in Greek mythology

eu·nuch ['yü-nək, -nik] -n

  1. a castrated man placed in charge of a harem or employed as a chamberlain in a palace
  2. a man or boy deprived of the testes or external genitals
  3. one that lacks virility or power
    • political eunuch s

eu·nuch·oid [-nə-,kȯid, -ni-] -n, adj

  1. a sexually deficient individual
  2. one lacking in sexual differentiation and tending toward the intersexual state

eu·on·y·mus [yü-'ä-nə-məs] -n

  1. spindle tree

eu·pa·trid [yü-'pa-trəd, 'yü-pə-] -n

  1. one of the hereditary aristocrats of ancient Athens

eu·pep·tic [yü-'pep-tik] -adj

  1. of, relating to, or having good digestion
  2. cheerful, optimistic

eu·phau·si·id [yü-'fȯ-zē-əd] -n, adj

  1. any of an order (Euphausiacea) of small usu. luminescent malacostracan crustaceans that resemble shrimps and in some areas form an important element in marine plankton

eu·phe·mise ['yü-fə-,mīz] -vt, n

(variant of euphemize)

  1. to express or describe euphemistically
    • euphemize death

eu·phe·mism ['yü-fə-,mi-zəm] -n, adj, adv

  1. the substitution of an agreeable or inoffensive expression for one that may offend or suggest something unpleasant
  2. the expression so substituted

eu·phe·mize ['yü-fə-,mīz] -vt, n

  1. to express or describe euphemistically
    • euphemize death

eu·phen·ics [yü-'fe-niks] -n pl but sing in constr, adj

  1. the therapeutic techniques and procedures (as medical treatment) for amelioration of the deleterious phenotypic effects of a genetic defect esp. without altering the genetic makeup of the germplasm of the individual

eu·pho·ni·ous [yü-'fō-nē-əs] -adj, adv, n

  1. pleasing to the ear

eu·pho·ni·um [yü-'fō-nē-əm] -n

  1. a brass instrument smaller than but resembling a tuba and having a range from B flat below the bass staff upward for three octaves

eu·pho·ny ['yü-fə-nē] -n, adj, adv

  1. pleasing or sweet sound
  2. the acoustic effect produced by words so formed or combined as to please the ear
  3. a harmonious succession of words having a pleasing sound

eu·phor·bia [yü-'fȯr-bē-ə] -n

  1. any of a large genus ( Euphorbia) of herbs, shrubs, and trees of the spurge family that have a milky juice and flowers lacking a calyx and included in an involucre which surrounds a group of several staminate flowers and a central pistillate flower with 3-lobed pistils
  2. spurge

eu·pho·ria [yü-'fȯr-ē-ə] -n, adj, adv

  1. a feeling of well-being or elation

eu·pho·ri·ant [yü-'fȯr-ē-ənt] -n, adj

  1. a drug that tends to induce euphoria

eu·pho·tic [yü-'fō-tik] -adj

  1. of, relating to, or constituting the upper layers of a body of water into which sufficient light penetrates to permit growth of green plants

Eu·phros·y·ne [yü-'frä-sə-(,)nē, -zə-] -n

  1. one of the three Graces

eu·phu·ism ['yü-fyə-,wi-zəm, -fyü-,i-] -n, adj, adv

  1. an elegant Elizabethan literary style marked by excessive use of balance, antithesis, and alliteration and by frequent use of similes drawn from mythology and nature
  2. artificial elegance of language

eu·ploid ['yü-,plȯid] -adj, n

  1. having a chromosome number that is an exact multiple of the monoploid number

eup·nea [yüp-'nē-ə] -n, adj

  1. normal respiration

Eur -abbr

  1. Europe; European

Eur- -comb form

  1. European and
    • Eur american
    : European
    • Euro centric
    : western European
    • Euro communism
    : of the European Union
    • Euro crat

Eur·asian [yu̇r-'ā-zhən, -shən, yər-] -adj, n

  1. of a mixed European and Asian origin
  2. of or relating to Europe and Asia

eu·re·ka [yu̇-'rē-kə] -interj

  1. used to express triumph on a discovery

eureka -adj

  1. marked by usu. sudden triumphant discovery
    • a eureka moment

eu·ro ['yu̇r-(,)ō] -n

  1. wallaroo

euro -n

  1. the common basic monetary unit of most countries of the European Union

Eu·ro ['yu̇r-(,)ō] -adj, n

  1. european

Eu·roAmer·i·can [,yu̇r-ō-ə-'mer-ə-kən] -adj

  1. western
  2. western

EuroAmerican -n

  1. a person of both European and American ancestry
  2. an American of European and esp. white European descent

Eu·ro·bond ['yu̇r-ō-,bänd] -n

  1. a bond of a U.S. corporation that is sold outside the U.S. and that is denominated and paid for in dollars and yields interest in dollars

Eu·ro·cen·tric [,yu̇r-ə-'sen-trik] -adj, n

  1. centered on Europe or the Europeans
  2. reflecting a tendency to interpret the world in terms of western and esp. European or Anglo-American values and experiences

Eu·ro·com·mu·nism [,yu̇r-ō-'käm-yə-,ni-zəm] -n, n or adj

  1. the communism esp. of western European Communist parties that was marked by a willingness to reach power through coalitions and by independence from Soviet leadership

Eu·ro·crat ['yu̇r-ə-,krat] -n

  1. a staff member of the administrative commission of the European Union

Eu·ro·cur·ren·cy [,yu̇r-ō-'kər-ən-sē, -'kə-rən-] -n

  1. moneys (as of the U.S. and Japan) held outside their countries of origin and used in the money markets of Europe

Eu·ro·dol·lar ['yu̇r-ō-,dä-lər] -n

  1. a U.S. dollar held as Eurocurrency

Eu·ro·pa [yu̇-'rō-pə] -n

  1. a Phoenician princess carried off by Zeus in the form of a white bull and by him mother of Minos, Rhadamanthus, and Sarpedon

Eu·ro·pe·an [,yu̇r-ə-'pē-ən, -'pēn] -adj, n

  1. of, relating to, or characteristic of the continent of Europe or its people

European -n

  1. a native or inhabitant of Europe
  2. a person of European descent

European American -n

  1. euro-american

European bison -n

  1. wisent

European chafer -n

  1. an Old World beetle ( Rhizotragus majalissyn. Amphimallon majalis) established in parts of eastern No. America where its larva is a destructive pest on the roots of turf grasses

European corn borer -n

  1. an Old World moth ( Ostrinia nubilalis) widespread in eastern and central No. America where its larva is a major pest in the stems, crowns, and fruits of crop plants and esp. Indian corn

European flat -n

  1. a flat-shelled European oyster ( Ostrea edulis)

Eu·ro·pe·an·ism [,yu̇r-ō-'pē-ə-ni-zəm] -n

  1. attachment or allegiance to the traditions, interests, or ideals of Europeans
  2. the ideal or advocacy of the political and economic integration of Europe

Eu·ro·pe·an·ist [,yu̇r-ō-'pē-ə-nist] -n

  1. a specialist in European culture or history
  2. an advocate for Europeanism

Eu·ro·pe·an·ize [yu̇r-ə-'pē-ə-,nīz] -vt, n

  1. to cause to acquire or conform to European characteristics

European plan -n

  1. a hotel plan whereby the daily rates cover only the cost of the room

European red mite -n

  1. a small bright red or brownish-red oval Old World mite ( Panonychus ulmi) that is a destructive orchard pest

eu·ro·pi·um [yu̇-'rō-pē-əm] -n

  1. a divalent and trivalent metallic element of the rare-earth group found esp. in monazite sand

Eu·ro·po·cen·tric [yu̇-,rō-pə-'sen-trik] -adj, n

  1. eurocentric

eury- -comb form

  1. broad : wide
    • eury haline

eu·ry·bath·ic [,yu̇r-i-'ba-thik] -adj

  1. capable of living on the bottom in both deep and shallow water

Eu·ryd·i·ce [yu̇-'ri-də-(,)sē] -n

  1. the wife of Orpheus whom he attempts to bring back from Hades

eu·ry·ha·line [,yu̇r-i-'hā-,līn, -'ha-] -adj

  1. able to live in waters of a wide range of salinity
    • euryhaline crabs

eu·ryp·ter·id [yu̇-'rip-tə-rəd] -n, adj

  1. any of an order (Eurypterida) of usu. large aquatic Paleozoic arthropods resembling scorpions and related to the horseshoe crabs called also sea scorpion

eu·ry·ther·mal [,yu̇r-i-'thər-məl] -adj

  1. tolerating a wide range of temperature
    • eurythermal animals

eu·ry·ther·mic [-mik] -adj

  1. eurythermal

eu·ry·ther·mous [-məs] -adj

  1. eurythermal

eu·ryth·mic [yu̇-'rith-mik] -adj

  1. harmonious
  2. of or relating to eurythmy or eurythmics

eu·ryth·mics [-miks] -n pl but sing or pl in constr

  1. the art of harmonious bodily movement esp. through expressive timed movements in response to improvised music

eu·ryth·my [-mē] -n

  1. a system of harmonious body movement to the rhythm of spoken words

eu·ry·top·ic [,yu̇r-i-'tä-pik] -adj

  1. tolerant of wide variation in one or more environmental factors

eu·so·cial [,yü-'sō-shəl] -adj, n

  1. living in a cooperative group in which usu. one female and several males are reproductively active and the nonbreeding individuals care for the young or protect and provide for the group
    • eusocial termites, ants, and naked mole rats

eu·sta·chian tube [yü-'stā-sh(ē-)ən- also -'stā-kē-ən-] -n

  1. a bony and cartilaginous tube connecting the middle ear with the nasopharynx and equalizing air pressure on both sides of the tympanic membrane called also auditory tube

eu·stat·ic [yü-'sta-tik] -adj

  1. relating to or characterized by worldwide change of sea level

eu·stele ['yü-,stēl, yü-'stē-lē] -n

  1. a stele typical of dicotyledonous plants that consists of vascular bundles of xylem and phloem strands with parenchymal cells between the bundles

eu·tec·tic [yü-'tek-tik] -adj, n, adj or n

  1. having the lowest melting point possible
  2. of or relating to a eutectic alloy or solution or its melting or freezing point

Eu·ter·pe [yü-'tər-pē] -n

  1. the Greek Muse of music

eu·tha·na·sia [,yü-thə-'nā-zh(ē-)ə] -n, adj

  1. the act or practice of killing or permitting the death of hopelessly sick or injured individuals (as persons or domestic animals) in a relatively painless way for reasons of mercy

eu·tha·nize ['yü-thə-,nīz] -vt

  1. to subject to euthanasia

eu·then·ics [yü-'the-niks] -n pl but sing or pl in constr, n

  1. a science that deals with development of human well-being by improvement of living conditions

eu·the·ri·an [yü-'thir-ē-ən] -adj, n

  1. of or relating to a major division (Eutheria) of mammals comprising the placental mammals

eu·thy·roid [(,)yü-'thī-,rȯid] -adj

  1. characterized by normal thyroid function

eu·tro·phic [yü-'trō-fik] -adj, n

  1. characterized by the state resulting from eutrophication

eu·tro·phi·ca·tion [yü-,trō-fə-'kā-shən, ,yü-trə-fə-] -n

  1. the process by which a body of water becomes enriched in dissolved nutrients (as phosphates) that stimulate the growth of aquatic plant life usu. resulting in the depletion of dissolved oxygen