| XEBECS | • xebecs n. Plural of xebec. • XEBEC n. a small, three-masted Mediterranean vessel with both square and triangular sails, also ZEBEC, ZEBECK. |
| XENIAL | • xenial adj. Hospitable, especially to visiting strangers or foreigners. • xenial adj. Of the relation between a host and guest; friendly. • XENIAL adj. of or concerning hospitality towards guests. |
| XENIAS | • XENIA n. the effect on a hybrid strain produced by transferring pollen from one strain to the seed of another strain. |
| XENIUM | • xenium n. A gift or offering. • XENIUM n. a gift made to a guest or ambassador; any compulsory gift. |
| XENONS | • xenons n. Plural of xenon. • XENON n. a heavy inert gas. |
| XEROMA | • xeroma n. (Medicine) Dryness of the eye. • XEROMA n. (Greek) a dry lustreless condition of the conjunctiva, also XEROPHTHALMIA. |
| XOANON | • xoanon n. (Historical) A wooden statue used as a cult image in Ancient Greece. • XOANON n. (Greek) a primitive statue. |
| XYLANS | • xylans n. Plural of xylan. • XYLAN n. a substance found in cell walls of plants. |
| XYLEMS | • xylems n. Plural of xylem. • XYLEM n. (Greek) a woody tissue in trees or plants, also XYLOGEN. |
| XYLENE | • xylene n. (Chemistry) Any of a group of three isomeric aromatic hydrocarbons, found in coal and wood tar. • XYLENE n. a flammable hydrocarbon, also XYLOL. |
| XYLOID | • xyloid adj. Characteristic of wood; woody. • XYLOID adj. woody; ligneous. |
| XYLOLS | • xylols n. Plural of xylol. • XYLOL n. a flammable hydrocarbon, also XYLENE. |
| XYLOMA | • xyloma n. A tumour on the woody part of a plant. • XYLOMA n. a body which forms spurs internally in fungi. |
| XYLOSE | • xylose n. (Biochemistry) One of the pentoses, C5H10O5, a white crystalline sugar, derived from wood. • XYLOSE n. a pentose (aldose) which occurs widely in plants, esp. as a constituent of xylan. |
| XYLYLS | • xylyls n. Plural of xylyl. • XYLYL n. a chemical compound found in coal-tar. |
| XYSTER | • xyster n. A surgical instrument used to scrape bones. • XYSTER n. (Greek) a surgeon's instrument for scraping bones. |
| XYSTOI | • xystoi n. Plural of xystos. • XYSTOS n. (Greek) a long covered portico or court used by ancient Greek athletes for exercises, also XYST, XYSTUS. |
| XYSTOS | • xystos n. Alternative form of xystus. • XYSTOS n. (Greek) a long covered portico or court used by ancient Greek athletes for exercises, also XYST, XYSTUS. |
| XYSTUS | • xystus n. (Historical, architecture, in Ancient Greece) A long and open portico within the gymnasium. • XYSTUS n. (historical) a long covered portico or court used by ancient Greek athletes for exercises, also XYST, XYSTOS. |