| APPROXIMATIONS | • approximations n. Plural of approximation. • APPROXIMATION n. the act of drawing together. |
| EXPECTORATIONS | • expectorations n. Plural of expectoration. • EXPECTORATION n. the act of expectorating. |
| EXPECTORATIVES | • expectoratives n. Plural of expectorative. • EXPECTORATIVE n. an expectorant medicine. |
| 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. |
| EXPROPRIATIONS | • expropriations n. Plural of expropriation. • EXPROPRIATION n. the act of expropriating. |
| EXTEMPORANEOUS | • extemporaneous adj. With inadequate preparation or without advance thought; offhand. • EXTEMPORANEOUS adj. unpremeditated; esp. of prayer, discourse, composition, etc., also EXTEMPORARY, EXTEMPORE. |
| EXTRAPOLATIONS | • extrapolations n. Plural of extrapolation. • EXTRAPOLATION n. the act of extrapolating. |
| EXTRAPOSITIONS | • extrapositions n. Plural of extraposition. • EXTRAPOSITION n. the act of extraposing. |
| LEXICOGRAPHIST | • lexicographist n. (Chiefly archaic) A student specialising in the discipline of lexicography; lexicographer. • LEXICOGRAPHIST n. one who makes dictionaries. |
| MORPHOSYNTAXES | • morphosyntaxes n. Plural of morphosyntax. • MORPHOSYNTAX n. the study of the interaction of morphology and syntax. |
| PNEUMOTHORAXES | • pneumothoraxes n. Plural of pneumothorax. • PNEUMOTHORAX n. accumulation of air or gas in the pleural cavity. |
| PROPAROXYTONES | • proparoxytones n. Plural of proparoxytone. • PROPAROXYTONE n. in ancient Greek, a word having the acute accent on the third last syllable. |
| REEXPLORATIONS | • reexplorations n. Plural of reexploration. |
| REEXPORTATIONS | • reexportations n. Plural of reexportation. • REEXPORTATION n. the act of reexporting. |
| XANTHOPTERINES | • XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN. |
| 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. |