| AMPHIOXUS | • amphioxus n. The lancelet, particularly of the genus Branchiostoma. • AMPHIOXUS n. (Greek) a fishlike creature, two or three inches long, found in temperate seas, aka lancelet. |
| AUXOTROPH | • auxotroph n. Any microorganism that has lost the ability to synthesize an organic compound required for its growth… • AUXOTROPH n. an auxotrophic strain or individual, i.e. one requiring a specific growth substance beyond the minimum required for normal metabolism. |
| HEXAPLOID | • hexaploid adj. Having six complete sets of chromosomes in a single cell. • hexaploid n. A cell or organism that has six complete sets of chromosomes. • HEXAPLOID n. a cell having six times the ordinary number of chromosomes. |
| HEXAPODAL | • hexapodal adj. Having six legs. • HEXAPODAL adj. relating to Hexapoda, insects. |
| HEXAPODIC | • HEXAPODIC adj. of a line or verse, having six feet. |
| HYPOTAXES | • hypotaxes n. Plural of hypotaxis. • HYPOTAXIS n. a dependent or subordinate relationship of clauses with conjunctions. |
| HYPOTAXIS | • hypotaxis n. (Grammar) Syntactic subordination of one clause or construction to another. • HYPOTAXIS n. a dependent or subordinate relationship of clauses with conjunctions. |
| HYPOXEMIA | • hypoxemia n. (Medicine) An abnormal deficiency in the concentration of oxygen in the blood, be it the partial pressure… • HYPOXEMIA n. deficiency of oxygenation of the blood, also HYPOXAEMIA, HYPOXIA. |
| PHOTOTAXY | • phototaxy n. Phototaxis. • PHOTOTAXY n. the movement of an entire organism in response to light. |
| PROTHORAX | • prothorax n. (Entomology) The anterior segment of the insect thorax; it carries the first pair of legs. • PROTHORAX n. the first or anterior segment of the thorax in insects. |
| SAXOPHONE | • saxophone n. A single-reed instrument musical instrument of the woodwind family, usually made of brass and with a… • SAXOPHONE n. a jazz and dance band instrument with a reed, an S-shaped (properly metal) tube, and about twenty finger-keys. |
| TOXAPHENE | • toxaphene n. An acaricide and insecticide that is a mixture of chlorinated camphenes, now considered a persistent… • TOXAPHENE n. chlorinated camphene used as an insecticide. |
| XEROPHAGY | • xerophagy n. A restrictive diet (of bread and water, for example) as a punishment or religious form of discipline. • XEROPHAGY n. the eating of dry food, esp. food cooked without oil. |
| XIPHOIDAL | • xiphoidal adj. Xiphoid; sword-shaped. • XIPHOIDAL adj. swordlike, also XIPHOID. |
| XIPHOPAGI | • xiphopagi n. Plural of xiphopagus. • XIPHOPAGUS n. a set of Siamese twins joined in the region of the xiphoid cartilage. |
| XYLOGRAPH | • xylograph n. An engraving in wood or woodcut, especially one used in printing predating the Western tradition (14th c.). • xylograph n. A print taken from such an engraving. • xylograph v. (Transitive) To make a print from an engraving in wood. |
| XYLOPHAGE | • xylophage n. (Biology) Any living organism that feeds on wood. • XYLOPHAGE n. an insect larva, mollusc etc. that eats or bores into wood. |