| EXASPERATINGLY | • exasperatingly adv. In an exasperating manner; frustratingly. • EXASPERATING adv. exciting the anger of. |
| EXPLORATIONIST | • explorationist n. A person employed to locate new sources of petroleum or other naturally-occurring resource. • EXPLORATIONIST n. a scientist engaged in mineral exploration. |
| EXTRAPOLATIONS | • extrapolations n. Plural of extrapolation. • EXTRAPOLATION n. the act of extrapolating. |
| HYPERCATALEXES | • HYPERCATALEXIS n. the state of being hypercatalectic. |
| 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. |
| LEXICOGRAPHERS | • lexicographers n. Plural of lexicographer. • LEXICOGRAPHER n. an author or editor of a dictionary. |
| LEXICOGRAPHIES | • lexicographies n. Plural of lexicography. • LEXICOGRAPHY n. the editing or making of a dictionary. |
| LEXICOGRAPHIST | • lexicographist n. (Chiefly archaic) A student specialising in the discipline of lexicography; lexicographer. • LEXICOGRAPHIST n. one who makes dictionaries. |
| PARADOXOLOGIES | • paradoxologies n. Plural of paradoxology. • PARADOXOLOGY n. the holding or maintaining of paradoxes. |
| PREMAXILLARIES | • premaxillaries n. Plural of premaxillary. • PREMAXILLARY n. the premaxilla, a bone in front of the maxilla, also PREMAXILLA. |
| REEXPLORATIONS | • reexplorations n. Plural of reexploration. |
| SUPERSEXUALITY | • supersexuality n. The quality of being supersexual. • SUPERSEXUALITY n. exceptional sexuality. |
| ULTRAEXPENSIVE | • ultraexpensive adj. Extremely expensive. |
| XENOTRANSPLANT | • xenotransplant n. An instance of xenotransplantation. • xenotransplant n. The graft (tissue or organ) transplanted in such an instance: Synonym of xenograft. • xenotransplant v. To carry out xenotransplantation. |
| XEROPHTHALMIAS | • xerophthalmias n. Plural of xerophthalmia. • XEROPHTHALMIA n. extreme dryness of the conjunctive, thought to stem from a vitamin A deficiency, also XEROMA. |
| XIPHIHUMERALIS | • xiphihumeralis n. A long, flat strip of pectoral muscle comprising a band of parallel fibres, found in felines. • XIPHIHUMERALIS n. in vertebrates, a muscle leading from the xiphoid cartilage to the humerus. |