| ANDROSPHINXES | • androsphinxes n. Plural of androsphinx. • ANDROSPHINX n. a sphinx having the head of a man. |
| EXECUTORSHIPS | • executorships n. Plural of executorship. • EXECUTORSHIP n. the office of executor. |
| EXTREMOPHILES | • extremophiles n. Plural of extremophile. • EXTREMOPHILE n. an organism that lives under extreme environmental conditions. |
| FLEXOGRAPHIES | • FLEXOGRAPHY n. a method of rotary letterpress printing using a resilient printing plate and solvent-based ink, used characteristically for printing on metal foil or plastic. |
| HIERACOSPHINX | • hieracosphinx n. A mythical beast found in Egyptian sculpture and European heraldry, being a lion with the head of a falcon. • HIERACOSPHINX n. in ancient Egyptian art, a hawk-headed sphinx. |
| HYDROPEROXIDE | • hydroperoxide n. (Organic chemistry) any mono-substituted derivative of hydrogen peroxide - ROOH. • HYDROPEROXIDE n. a compound containing an O2H group. |
| HYPERPROSEXIA | • hyperprosexia n. (Medicine, rare) Excessive attention; an abnormal state in which a person concentrates on one thing… • HYPERPROSEXIA n. abnormal powers of perception, as in Australian aboriginal trackers. |
| LEXICOGRAPHER | • lexicographer n. One who writes or compiles a dictionary. • LEXICOGRAPHER n. an author or editor of a dictionary. |
| LEXICOGRAPHIC | • lexicographic adj. Like a dictionary, relating to lexicography (the writing of a dictionary). • LEXICOGRAPHIC adj. relating to lexicography, also LEXICOGRAPHICAL. |
| XANTHOPTERINE | • xanthopterine n. Alternative form of xanthopterin. • 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. |
| XEROPHTHALMIA | • xerophthalmia n. (Ophthalmology) A condition due to a deficiency of vitamin A where the conjunctiva and cornea become… • XEROPHTHALMIA n. extreme dryness of the conjunctive, thought to stem from a vitamin A deficiency, also XEROMA. |
| XEROPHTHALMIC | • xerophthalmic adj. Of or pertaining to xerophthalmia. • XEROPHTHALMIC adj. relating to xerophthalmia. |
| 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. |
| XYLOGRAPHICAL | • xylographical adj. Xylographic. • XYLOGRAPHICAL adj. relating to xylography, the art of making engravings on wood, also XYLOGRAPHIC. |