| ARCHDUKEDOMS | • archdukedoms n. Plural of archdukedom. • ARCHDUKEDOM n. the domain of an archduke. |
| DEUTSCHMARKS | • Deutschmarks n. Plural of Deutschmark. |
| DINOTHERIUMS | • dinotheriums n. Plural of dinotherium. • DINOTHERIUM n. an extinct elephantine mammal with downward-curving tusks, also DEINOTHERE, DEINOTHERIUM, DINOTHERE. |
| DISHUMOURING | • dishumouring v. Present participle of dishumour. • DISHUMOUR v. (obsolete) to put out of humour. |
| HUMMINGBIRDS | • hummingbirds n. Plural of hummingbird. • humming-birds n. Plural of humming-bird. • humming␣birds n. Plural of humming bird. |
| HYDRARGYRUMS | • HYDRARGYRUM n. an obsolete name for mercury. |
| HYDROMEDUSAE | • hydromedusae n. Plural of hydromedusa. • HYDROMEDUSA n. a hydrozoan in its medusoid stage, also HYDROMEDUSAN, HYDROMEDUSOID. |
| HYDROMEDUSAN | • hydromedusan adj. (Zoology) Relating to the hydromedusas. • HYDROMEDUSAN n. a hydromedusa, also HYDROMEDUSA, HYDROMEDUSOID. |
| HYDROMEDUSAS | • hydromedusas n. Plural of hydromedusa. • HYDROMEDUSA n. a hydrozoan in its medusoid stage, also HYDROMEDUSAN, HYDROMEDUSOID. |
| HYDROXONIUMS | • hydroxoniums n. Plural of hydroxonium. • HYDROXONIUM n. the obsolete name for the cation H3O+ derived from protonation of water. |
| IDIOTHERMOUS | • IDIOTHERMOUS adj. warm-blooded. |
| MALNOURISHED | • malnourished adj. Suffering from malnutrition. • malnourished v. Simple past tense and past participle of malnourish. • MALNOURISHED adj. undernourished. |
| OPHIDIARIUMS | • OPHIDIARIUM n. a snake-house. |
| PACHYDERMOUS | • PACHYDERMOUS adj. thick-skinned, also PACHYDERMATOUS. |
| PSEUDOMORPHS | • pseudomorphs n. Plural of pseudomorph. • PSEUDOMORPH n. a false or abnormal physical form. |
| SCARAMOUCHED | • SCARAMOUCH v. to behave like a rascal or cowardly fool. |
| THUNDERSTORM | • thunderstorm n. A storm consisting of thunder and lightning produced by a cumulonimbus, usually accompanied with heavy… • THUNDERSTORM n. a storm featuring thunder. |