| APPROXIMEETING | • APPROXIMEETING n. the practice of a group of people making indefinite plans to meet and then altering those plans regularly via mobile phones according to changing circumstances. |
| 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. |
| EXTEMPORANEITY | • extemporaneity n. The degree or property of being extemporaneous. • EXTEMPORANEITY n. the state of being extemporaneous. |
| EXTRAPOLATIONS | • extrapolations n. Plural of extrapolation. • EXTRAPOLATION n. the act of extrapolating. |
| EXTRAPOSITIONS | • extrapositions n. Plural of extraposition. • EXTRAPOSITION n. the act of extraposing. |
| HYDROXYAPATITE | • hydroxyapatite n. A basic calcium phosphate mineral that is the principal inorganic constituent of bone and teeth. • HYDROXYAPATITE n. a complex phosphate of calcium that occurs as a mineral and is the chief structural element of vertebrate bone. |
| LEXICOGRAPHIST | • lexicographist n. (Chiefly archaic) A student specialising in the discipline of lexicography; lexicographer. • LEXICOGRAPHIST n. one who makes dictionaries. |
| 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. |
| XEROPHTHALMIAS | • xerophthalmias n. Plural of xerophthalmia. • XEROPHTHALMIA n. extreme dryness of the conjunctive, thought to stem from a vitamin A deficiency, also XEROMA. |
| XEROPHYTICALLY | • xerophytically adv. As a xerophyte. • XEROPHYTIC adv. able to withstand drought. |