| DESULPHURING | • desulphuring v. Present participle of desulphur. • DESULPHUR v. to remove sulphur from, also DESULFUR. |
| DOLPHINARIUM | • dolphinarium n. An aquarium that houses dolphins. • DOLPHINARIUM n. a place where dolphins are kept. |
| ENSEPULCHRED | • ensepulchred v. Simple past tense and past participle of ensepulchre. • ENSEPULCHRE v. to place in a sepulchre. |
| GUARDIANSHIP | • guardianship n. The office or position of one acting as a guardian or conservator, especially in a legal capacity. • GUARDIANSHIP n. the office of guardian. |
| HYDROPHANOUS | • hydrophanous adj. (Mineralogy) Made transparent by immersion in water. • HYDROPHANOUS adj. becoming transparent when placed in water. |
| QUADRAPHONIC | • quadraphonic adj. (Of a sound system) Employing four independent channels or speakers. • QUADRAPHONIC adj. of, relating to, or using four channels for the transmission, recording, or reproduction of sound, also QUADRIPHONIC, QUADROPHONIC. |
| QUADRIPHONIC | • quadriphonic adj. Alternative form of quadraphonic. • QUADRIPHONIC adj. of, relating to, or using four channels for the transmission, recording, or reproduction of sound, also QUADRAPHONIC, QUADROPHONIC. |
| QUADROPHONIC | • quadrophonic adj. Alternative spelling of quadraphonic. • QUADROPHONIC adj. of, relating to, or using four channels for the transmission, recording, or reproduction of sound, also QUADRAPHONIC, QUADRIPHONIC. |
| SUPERHARDENS | • superhardens v. Third-person singular simple present indicative form of superharden. • SUPERHARDEN v. to harden to extremes. |
| THUNDERCLAPS | • thunderclaps n. Plural of thunderclap. • thunder␣claps n. Plural of thunder clap. • THUNDERCLAP n. a clap of thunder. |
| UNAPPROACHED | • unapproached adj. Not approached. • UNAPPROACHED adj. not approached. |
| UNCHAPERONED | • unchaperoned adj. Not chaperoned; not having a chaperone. • UNCHAPERONED adj. not chaperoned. |
| UNDECIPHERED | • undeciphered adj. Not deciphered. • undeciphered v. Simple past tense and past participle of undecipher. • UNDECIPHERED adj. not deciphered. |
| UNFRIENDSHIP | • unfriendship n. Unfriendliness; enmity. • UNFRIENDSHIP n. (archaic) unfriendliness. |
| UNPROHIBITED | • unprohibited adj. Not prohibited. • UNPROHIBITED adj. not prohibited. |
| UNREPROACHED | • unreproached adj. Not reproached. • UNREPROACHED adj. not reproached. |
| UNSEPULCHRED | • unsepulchred adj. Not laid in a sepulchre. • UNSEPULCHRED adj. not sepulchred. |
| UNWORSHIPPED | • unworshipped adj. Not worshipped. • UNWORSHIPPED adj. not worshipped. |
| UPTHUNDERING | • upthundering v. Present participle of upthunder. • UPTHUNDER v. to send up a noise like thunder. |