x ['eks] -n
- the 24th letter of the English alphabet
- a graphic representation of this letter
- a speech counterpart of orthographic x
- ten
- a graphic device for reproducing the letter x
- one designated xesp. as the 24th in order or class, or the first in an order or class that includes x, y, and sometimes z
- an unknown quantity
- something shaped like or marked with the letter X
- to mark with an x
- to cancel or obliterate with a series of x's usu. used with out
- cross
- ex
- experimental
- extra
X ['eks] -adj
- of such a nature that admission is denied to persons under a specified age (as 17) used before the adoption of NC-17
Xan·a·du ['za-nə-,dü, -,dyü] -n
- an idyllic, exotic, or luxurious place
xanth- -comb form
- yellow
xan·than gum ['zan-thən-] -n
- a polysaccharide that is produced by fermentation of carbohydrates by a gram-negative bacterium ( Xanthomonas campestris) and is a thickening and suspending agent used esp. in pharmaceuticals and prepared foods called also xanthan
xan·thate ['zan-,thāt] -n
- a salt or ester of any of various thio acids and esp. C 3H 6OS 2
xan·thene [-,thēn] -n
- a white crystalline heterocyclic compound C 13H 10O
- an isomer of this that is the parent of the colored forms of the xanthene dyes
- any of various derivatives of xanthene
xanthene dye -n
- any of various brilliant fluorescent yellow to pink to bluish-red dyes that are characterized by the presence of the xanthene nucleus
xan·thine ['zan-,thēn] -n
- a feebly basic compound C 5H 4N 4O 2that occurs esp. in animal or plant tissue, is derived from guanine and hypoxanthine, and yields uric acid on oxidation
- any of various derivatives of xanthine (as methylxanthine)
Xan·thip·pe [zan-'thi-pē, -'ti-] -n
- an ill-tempered woman
xan·thone ['zan-,thōn] -n
- a ketone C 13H 8O 2that is the parent of several natural yellow pigments
xan·tho·phyll ['zan(t)-thə-,fil] -n
- any of several yellow to orange carotenoid pigments that are oxygen derivatives of carotenes
- lutein
Xa·ve·ri·an Brother [zā-'vir-ē-ən-, za-] -n
- a member of a Roman Catholic congregation of lay brothers founded by Theodore J. Ryken in Brugge, Belgium, in 1839 and dedicated to education
xax·is ['eks-,ak-səs] -n
- the axis in a plane Cartesian coordinate system parallel to which abscissas are measured
- one of the three axes in a three-dimensional rectangular coordinate system