| EUXENITE | • euxenite n. (Mineralogy) A dark brown lustrous mineral that is a mixed oxide of cerium, erbium, titanium, uranium… • EUXENITE n. a mineral, a niobate and tantalate of yttrium and other rare earth elements and uranium. |
| MUSKOXEN | • muskoxen n. Plural of muskox. • musk␣oxen n. Plural of musk ox. • MUSKOX n. a large bovid of arctic regions. |
| NAPROXEN | • naproxen n. (Pharmacology) A certain non-steroidal anti-inflammatory drug that inhibits the COX-1 and COX-2 enzymes… • NAPROXEN n. an anti-inflammatory drug. |
| PYROXENE | • pyroxene n. (Mineralogy) Any of a group of crystalline minerals containing silicates of iron, magnesium and calcium. • PYROXENE n. any of a group of minerals common in igneous rocks. |
| VIXENISH | • vixenish adj. Of or pertaining to a vixen; resembling a vixen. • VIXENISH adj. bad-tempered, snarling. |
| XENOGAMY | • xenogamy n. (Botany) The transfer of pollen from the anthers of one plant to the stigma of another; cross-pollination. • xenogamy n. Cross-cultural marriage. • XENOGAMY n. cross-fertilization. |
| XENOGENY | • xenogeny n. Xenogenesis. • XENOGENY n. the production of offspring totally different from the parent. |
| XENOLITH | • xenolith n. (Geology) any piece of rock having a different origin to that of the igneous rock in which it is found. • XENOLITH n. (Greek) a rock fragment foreign to the igneous mass in which it occurs. |
| XENOPHYA | • xenophya n. (Biology) foreign particles found within an organism, such as sand grains. • XENOPHYA n. (Greek) elements of a shell or skeleton not secreted by the organism itself. |
| XENOTIME | • xenotime n. (Mineralogy) A yellow-brown mineral, yttrium phosphate (YPO4). • XENOTIME n. (Greek) a phosphate of yttrium occurring in yellowish-brown tetragonal crystals. |
| XENURINE | • xenurine n. Any armadillo of the former genus Xenurus (now Cabassous). • XENURINE n. any armadillo of the genus Xenurus. |