xi ['zī, 'ksī] -n
- the 14th letter of the Greek alphabet
xin·ter·cept ['eks-'in-tər-,sept] -n
- the x-coordinate of a point where a line, curve, or surface intersects the x-axis
xi·phi·ster·num [,zī-fə-'stər-nəm, ,zi-] -n
- xiphoid process
xi·phoid ['zī-,fȯid, 'zi-] -n, adj
- xiphoid process
xiphoid process -n
- the third and lowest segment of the human sternum
xir·ra·di·a·tion [,eks-i-,rā-dē-'ā-shən] -n
- x-radiation