| BISMUTHOUS | • bismuthous adj. (Chemistry) Of, or containing bismuth in its lower valence. • BISMUTHOUS adj. containing bismuth. |
| BITUMINOUS | • bituminous adj. Of or pertaining to bitumen. • bituminous n. (Uncountable) Bituminous coal. • bituminous n. (Countable) A type or grade of bituminous coal. |
| BLUEMOUTHS | • BLUEMOUTH n. a deepwater fish. |
| BOTULINUMS | • BOTULINUM n. a powerful bacterial toxin, also BOTULIN, BOTULINUS. |
| DUMBSTRUCK | • dumbstruck adj. So shocked as to be unable to speak. • DUMBSTRUCK adj. made silent by astonishment, also DUMBSTRICKEN. |
| NUMBNUTSES | • numbnutses n. Plural of numbnuts. • NUMBNUTS n. an idiot. |
| OUTFUMBLES | • outfumbles v. Third-person singular simple present indicative form of outfumble. • OUTFUMBLE v. to surpass in fumbling. |
| OUTNUMBERS | • outnumbers v. Third-person singular simple present indicative form of outnumber. • OUTNUMBER v. to surpass in number. |
| STUMBLEBUM | • stumblebum n. A blundering or awkward person. • stumblebum n. An inept prizefighter. • stumblebum n. (Slang) A homeless person. |
| SUBDUEMENT | • subduement n. (Obsolete) subdual; act of subduing. • SUBDUEMENT n. subdual. |
| SUBMENTUMS | • SUBMENTUM n. the basal part of the labium of insects. |
| SUBOPTIMUM | • suboptimum adj. Suboptimal. • suboptimum n. A point or value below an optimum. • SUBOPTIMUM n. something that is less than optimal. |
| SUBSTRATUM | • substratum n. A layer that lies underneath another. • substratum n. (Figuratively) The underlying cause or basis of something. • substratum n. (Linguistics) A substrate. |
| TUMBLEBUGS | • tumblebugs n. Plural of tumblebug. • TUMBLEBUG n. a dung beetle, that rolls up balls of dung for protection and nourishment of young. |
| VESTIBULUM | • vestibulum n. (Zootomy) A cavity into which, in certain bryozoans, the esophagus and anus open. • vestibulum n. (Anatomy) The vestibule of the ear. • VESTIBULUM n. (Latin) a cavity into which, in certain bryozoans, the esophagus and anus open. |