XANES(X-ray absorption near-edge structure) See
EXTENDEDX-RAY ABSORPTION FINE STRUCTURE.

xenobiotic A xenobiotic (Greek xenos“foreign” and
bios“life”) is a compound that is foreign to a living
organism. Principal xenobiotics include: drugs, carcino-
gens, and various compounds that have been intro-
duced into the environment by artificial means.

X ray Electromagnetic radiation of shorter wavelength
than ultraviolet radiation (10–11m to 10–9m or 0.01 nm

to 1 nm [0.00001 to 3,000 angstroms]) produced by

bombardment of atoms with high-quantum-energy par-

ticles. Can pass through many forms of matter and is

used medically and industrially to examine internal

structures of organs, bodies, and materials.

X-ray absorption near-edge structure(XANES)

SeeEXTENDEDX-RAY ABSORPTION FINE STRUCTURE.

X-ray diffraction An analytical technique used to

determine the structures of crystalline solids.

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