| CARBOXYLATING | • carboxylating v. Present participle of carboxylate. • CARBOXYLATE v. to introduce carboxyl or carbon dioxide into (a compound) with formation of a carboxylic acid. |
| ECOTOXICOLOGY | • ecotoxicology n. The toxicology of a substance towards a wide range of organisms or towards an ecosystem; the study of ecotoxicity. • ECOTOXICOLOGY n. the study of the destructive effect of waste materials, etc. on the environment. |
| EXOBIOLOGISTS | • exobiologists n. Plural of exobiologist. • EXOBIOLOGIST n. a student of exobiology. |
| EXPOSTULATING | • expostulating v. Present participle of expostulate. • EXPOSTULATE v. to remonstrate; to discuss or reason with. |
| EXPURGATORIAL | • expurgatorial adj. Tending or serving to expurgate; expurgatory. • EXPURGATORIAL adj. tending to expurgate or purify, also EXPURGATORY. |
| EXTRAPOLATING | • extrapolating v. Present participle of extrapolate. • EXTRAPOLATE v. to infer (values of a variable in an unobserved interval) from values within an already observed interval. |
| HYDROXYLATING | • hydroxylating v. Present participle of hydroxylate. • HYDROXYLATE v. to introduce hydroxyl into. |
| LETTERBOXINGS | • LETTERBOXING n. showing a film on television in its original wide screen format. |
| LEXICOLOGISTS | • lexicologists n. Plural of lexicologist. • LEXICOLOGIST n. a practitioner of lexicology. |
| PROTOGALAXIES | • protogalaxies n. Plural of protogalaxy. • PROTOGALAXY n. a galaxy in its initial state of formation. |
| REFLEXOLOGIST | • reflexologist n. A practitioner of reflexology. • REFLEXOLOGIST n. a specialist in reflexology. |
| TOXICOLOGICAL | • toxicological adj. Of or pertaining to toxicology. • TOXICOLOGICAL adj. of or relating to toxicology, the study of poisons, also TOXICOLOGIC. |
| TOXICOLOGISTS | • toxicologists n. Plural of toxicologist. • TOXICOLOGIST n. an expert in toxicology. |
| VEXILLOLOGIST | • vexillologist n. One who studies flags. • VEXILLOLOGIST n. one who studies flags. |