| ASPHYXIATOR | • asphyxiator n. One who or that which asphyxiates. • ASPHYXIATOR n. one of who asphyxiates. |
| ASPHYXIATORS | • asphyxiators n. Plural of asphyxiator. • ASPHYXIATOR n. one of who asphyxiates. |
| AUXOTROPHIES | • auxotrophies n. Plural of auxotrophy. • AUXOTROPHY n. the state of being auxotrophic, requiring a specific growth substance beyond the minimum required for normal metabolism. |
| HYDROXYAPATITES | • hydroxyapatites n. Plural of hydroxyapatite. • HYDROXYAPATITE n. a complex phosphate of calcium that occurs as a mineral and is the chief structural element of vertebrate bone. |
| HYPERCATALEXIS | • hypercatalexis n. (Poetry) The addition of one or two syllables to the last foot of a verse. • HYPERCATALEXIS n. the state of being hypercatalectic. |
| HYPERSEXUALITY | • hypersexuality n. The desire for sexual activity at levels high enough to be considered clinically significant. • HYPERSEXUALITY n. the state of being hypersexual. |
| LEXICOGRAPHIST | • lexicographist n. (Chiefly archaic) A student specialising in the discipline of lexicography; lexicographer. • LEXICOGRAPHIST n. one who makes dictionaries. |
| LEXICOGRAPHISTS | • lexicographists n. Plural of lexicographist. • LEXICOGRAPHIST n. one who makes dictionaries. |
| ORTHOPRAXIES | • ORTHOPRAXY n. the treatment of deformities in the human body by mechanical appliances. |
| ORTHOPRAXIS | • orthopraxis n. Orthopraxy. • ORTHOPRAXIS n. correct practice in religion. |
| TROPHALLAXIS | • trophallaxis n. (Biology) The mutual exchange of (fluid) food between individuals, especially in social insects. • TROPHALLAXIS n. mutual exchange of nutriment in symbiosis. |
| TROPHOTAXIS | • TROPHOTAXIS n. chemotaxis and chemotropism where the stimulating substance is food. |
| XANTHOPTERINES | • XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN. |
| XANTHOPTERINS | • xanthopterins n. Plural of xanthopterin. • XANTHOPTERIN n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERINE. |
| XEROPHTHALMIAS | • xerophthalmias n. Plural of xerophthalmia. • XEROPHTHALMIA n. extreme dryness of the conjunctive, thought to stem from a vitamin A deficiency, also XEROMA. |
| XIPHIPLASTRA | • xiphiplastra n. Plural of xiphiplastron. • XIPHIPLASTRON n. in chelonians, one of the plates forming the plastron, lying posterior to the hypoplastron. |
| XIPHIPLASTRAL | • xiphiplastral adj. Relating to a xiphiplastron. • XIPHIPLASTRAL n. a type of chelonian. |
| XIPHIPLASTRALS | • XIPHIPLASTRAL n. a type of chelonian. |
| XIPHIPLASTRON | • xiphiplastron n. The posterior, or fourth lateral plate in the plastron of a turtle. • XIPHIPLASTRON n. in chelonians, one of the plates forming the plastron, lying posterior to the hypoplastron. |
| XIPHISTERNA | • xiphisterna n. Plural of xiphisternum. • XIPHISTERNUM n. the posterior and smallest of the three divisions of the sternum. |