| IMPUNDULU | • impundulu n. Synonym of lightning bird. • IMPUNDULU n. (Bantu) a mythical bird with magical powers, often identified with the secretary bird. |
| IMPUNDULUS | • IMPUNDULU n. (Bantu) a mythical bird with magical powers, often identified with the secretary bird. |
| INCUNABULUM | • incunabulum n. (Printing) A book, single sheet, or image that was printed before the year 1501 in Europe. • incunabulum n. (Chiefly in the plural) The cradle, birthplace, or origin of something. • INCUNABULUM n. (Latin) a book printed from movable type before 1501, also INCUNABLE. |
| CUMULONIMBUS | • cumulonimbus n. (Meteorology) A cloud, with a tall structure and a flat base, that is often associated with thunderstorms. • cumulo-nimbus n. Alternative form of cumulonimbus. • CUMULONIMBUS n. a type of cloud. |
| DURALUMINIUM | • duraluminium n. Synonym of duralumin. • DURALUMINIUM n. a strong, light, aluminium alloy containing copper, also DURAL, DURALUMIN. |
| INFUNDIBULUM | • infundibulum n. (Anatomy) A funnel-shaped cavity or organ. • INFUNDIBULUM n. a funnel-shaped body part (e.g. the nares). |
| TUMULTUATING | • tumultuating v. Present participle of tumultuate. • TUMULTUATE v. (archaic) to make a tumult. |
| TUMULTUATION | • tumultuation n. (Obsolete) Irregular or disorderly movement; commotion. • TUMULTUATION n. (archaic) a tumult. |
| UNMIRACULOUS | • unmiraculous adj. Not miraculous; commonplace, mundane. • UNMIRACULOUS adj. not miraculous. |
| UNNILQUADIUM | • unnilquadium n. (Dated) rutherfordium. • UNNILQUADIUM n. a former name of the transuranic element rutherfordium. |
| DURALUMINIUMS | • DURALUMINIUM n. a strong, light, aluminium alloy containing copper, also DURAL, DURALUMIN. |
| MULTITUDINOUS | • multitudinous adj. Existing in great numbers; innumerable. • multitudinous adj. Comprising a large number of parts. • multitudinous adj. Crowded with many people. |
| TUMULTUATIONS | • tumultuations n. Plural of tumultuation. • TUMULTUATION n. (archaic) a tumult. |
| ULTRALUMINOUS | • ultraluminous adj. Very luminous. |
| UNAMBIGUOUSLY | • unambiguously adv. In a manner that is not ambiguous; leaving no doubt; clearly. • UNAMBIGUOUS adv. not ambiguous. |
| UNMISTRUSTFUL | • unmistrustful adj. Not mistrustful. • UNMISTRUSTFUL adj. not mistrustful. |
| UNMURMURINGLY | • unmurmuringly adv. Without protest or complaint. • UNMURMURING adv. not murmuring. |
| UNNILQUADIUMS | • UNNILQUADIUM n. a former name of the transuranic element rutherfordium. |
| CUMULONIMBUSES | • cumulonimbuses n. Plural of cumulonimbus. • CUMULONIMBUS n. a type of cloud. |
| MULTITUDINOUSLY | • multitudinously adv. In a multitudinous way. • MULTITUDINOUS adv. existing in a great multitude. |