| ALBURNOUS | • alburnous adj. Of or pertaining to alburnum. • ALBURNOUS adj. of or pertaining to alburnum, the white and softer part of wood. |
| ALBURNUMS | • alburnums n. Plural of alburnum. • ALBURNUM n. the soft wood between inner bark and heartwood. |
| BOTULINUS | • botulinus n. Alternative form of botulinum. • BOTULINUS n. a powerful bacterial toxin, also BOTULIN, BOTULINUM. |
| BULNBULNS | • BULNBULN n. (Native Australian) the lyrebird. |
| BUSULFANS | • BUSULFAN n. a drug used to treat leukaemia. |
| LABURNUMS | • laburnums n. Plural of laburnum. • LABURNUM n. a genus of ornamental shrubs. |
| NEBULIUMS | • NEBULIUM n. an element formerly assumed to explain certain lines in the spectra of gaseous nebulae, now known to be due to states of oxygen and nitrogen not possible under earthly conditions. |
| NUMBSKULL | • numbskull n. (Derogatory) Alternative spelling of numskull. • NUMBSKULL n. a stupid person, also NUMSKULL. |
| SUBCONSUL | • SUBCONSUL n. an assistant to a consul. |
| SUBLUNARY | • sublunary adj. Situated between the earth and the moon; sublunar or cislunar. • sublunary adj. Of this world (As opposed to heaven etc.); earthly, terrestrial. • sublunary n. (Obsolete) Any worldly thing. |
| SUBLUNATE | • sublunate adj. Almost or not quite lunate; approaching a crescent shape. • SUBLUNATE adj. approaching the form of a crescent. |
| SUBNEURAL | • subneural adj. Situated beneath a main neural axis or nervous cord. • SUBNEURAL adj. situated beneath a main neural axis. |
| SUBNUCLEI | • subnuclei n. Plural of subnucleus. • SUBNUCLEUS n. a secondary nucleus. |
| UNBASHFUL | • unbashful adj. Not bashful. • UNBASHFUL adj. not bashful or modest. |
| UNBUCKLES | • unbuckles v. Third-person singular simple present indicative form of unbuckle. • UNBUCKLE v. to undo a buckle. |
| UNBUNDLES | • unbundles v. Third-person singular simple present indicative form of unbundle. • UNBUNDLE v. to price separately. |
| UNDOUBLES | • undoubles v. Third-person singular simple present indicative form of undouble. • UNDOUBLE v. to change from a state of being doubled. |
| UNSUBTLER | • unsubtler adj. Comparative form of unsubtle: more unsubtle. • UNSUBTLE adj. not subtle. |