| ARCHAEOPTERYXES | • archaeopteryxes n. Plural of archaeopteryx. • ARCHAEOPTERYX n. a Jurassic fossil bird of the Archaeopteryx genus, with a long bony tail, sharp-toothed jaws, and wings bearing three clawed digits. |
| COUNTEREXAMPLES | • counterexamples n. Plural of counterexample. • COUNTEREXAMPLE n. an example that refutes or disproves a proposition or theory. |
| DEXAMPHETAMINES | • DEXAMPHETAMINE n. the dextrorotatory isomer of amphetamine, used as a stimulant. |
| EXCEPTIONALNESS | • exceptionalness n. The quality of being exceptional. • EXCEPTIONAL n. by way of an exception. |
| EXEMPLARINESSES | • EXEMPLARINESS n. the state of being exemplary. |
| EXPANSIVENESSES | • expansivenesses n. Plural of expansiveness. • EXPANSIVENESS n. EXPANSIVE, widely extended. |
| EXPENDABILITIES | • expendabilities n. Plural of expendability. • EXPENDABILITY n. the state of being expendable. |
| EXPERIENTIALISM | • experientialism n. (Philosophy) The theory that experience is the source of knowledge. • EXPERIENTIALISM n. the doctrine that knowledge comes from experience. |
| EXPERIENTIALIST | • experientialist n. A proponent of experientialism. • EXPERIENTIALIST n. a believer in experientialism, the doctrine that knowledge comes from experience. |
| EXPERIMENTALISE | • experimentalise v. Alternative form of experimentalize. • EXPERIMENTALISE v. to rely on experiment, also EXPERIMENTALIZE. |
| EXPERIMENTALISM | • experimentalism n. An experimental practice or tendency, especially in the arts. • experimentalism n. (Philosophy) An empirical or pragmatic approach which emphasizes the importance of experimentation. • EXPERIMENTALISM n. reliance on or advocacy of experimental or empirical principles and procedures. |
| EXPERIMENTALIST | • experimentalist n. One who performs experiments. • experimentalist n. A person who values the results of experiments over theory. • experimentalist n. A person who seeks or enjoys new experiences. |
| EXTEMPORARINESS | • extemporariness n. The quality of being extemporary. • EXTEMPORARINESS n. the state of being extemporary. |
| PROXIMATENESSES | • PROXIMATENESS n. the state of being proximate. |