n. Fourteenth letter of the greek alphabet (x, x). [greek]
n. Colloq. = *christmas. [abbreviation, with x for the initial chi of greek khristos christ]
—n. - (in pl.) Electromagnetic radiation of short wavelength, able to pass through opaque bodies.
- photograph made by x-rays, esp. Showing the position of bones etc. By their greater absorption of the rays. —v. Photograph, examine, or treat with x-rays. [x, originally with ref. To the unknown nature of the rays]
n. Heavy inert gaseous element. [greek, neuter of xenos strange]
—n. Propr. - machine for copying by xerography.
- copy thus made. —v. (xerox) reproduce by this process.
n. Bot. Woody tissue. [greek]
n. Musical instrument of graduated wooden or metal bars struck with small wooden hammers. xylophonist n. [greek xulon wood]
n. Hatred or fear of foreigners. xenophobic adj. [greek xenos strange, stranger]