| PHYLLOTAXIS | • phyllotaxis n. (Botany) The arrangement of leaves on a stem, or the mathematical principles governing such arrangement. • PHYLLOTAXIS n. the arrangement of leaves on a stem and in relation to one another, also PHYLLOTAXY. |
| TOXOPHILIES | • TOXOPHILY n. the sport of archery. |
| XYLOPHONIST | • xylophonist n. Someone who plays a xylophone. • XYLOPHONIST n. one who plays the xylophone. |
| PHYLLOTAXIES | • phyllotaxies n. Plural of phyllotaxy. • PHYLLOTAXY n. the arrangement of leaves on a stem and in relation to one another, also PHYLLOTAXIS. |
| PHYTOALEXINS | • phytoalexins n. Plural of phytoalexin. • PHYTOALEXIN n. any substance produced by a plant as a defence against disease. |
| TOXOPHILITES | • toxophilites n. Plural of toxophilite. • TOXOPHILITE n. one fond of or expert at archery. |
| TROPHALLAXIS | • trophallaxis n. (Biology) The mutual exchange of (fluid) food between individuals, especially in social insects. • TROPHALLAXIS n. mutual exchange of nutriment in symbiosis. |
| XYLOPHONISTS | • xylophonists n. Plural of xylophonist. • XYLOPHONIST n. one who plays the xylophone. |
| EXOPHTHALMIAS | • exophthalmias n. Plural of exophthalmia. • EXOPHTHALMIA n. a protrusion of the eyeballs. |
| EXTREMOPHILES | • extremophiles n. Plural of extremophile. • EXTREMOPHILE n. an organism that lives under extreme environmental conditions. |
| LITHOLAPAXIES | • litholapaxies n. Plural of litholapaxy. • LITHOLAPAXY n. the operation of crushing stone in the bladder and working it out. |
| 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. |
| LEXICOGRAPHIST | • lexicographist n. (Chiefly archaic) A student specialising in the discipline of lexicography; lexicographer. • LEXICOGRAPHIST n. one who makes dictionaries. |
| XEROPHTHALMIAS | • xerophthalmias n. Plural of xerophthalmia. • XEROPHTHALMIA n. extreme dryness of the conjunctive, thought to stem from a vitamin A deficiency, also XEROMA. |
| LEXICOGRAPHISTS | • lexicographists n. Plural of lexicographist. • LEXICOGRAPHIST n. one who makes dictionaries. |
| PSYCHOSEXUALITY | • psychosexuality n. The psychological aspects of sexuality. • PSYCHOSEXUALITY n. the psychic factors of sex. |