| AUTUMNIER | • AUTUMNY adj. (colloq.) autumn-like. |
| MENSTRUUM | • menstruum n. (Chiefly in the plural, historical) The menses; menstrual discharge. • menstruum n. (Historical) A solvent. • menstruum n. Any liquid medium. |
| NEPTUNIUM | • neptunium n. The transuranic chemical element with atomic number 93 and symbol Np. • NEPTUNIUM n. a radioactive metallic chemical element of the lanthanide series. |
| NUMMULITE | • nummulite n. A protozoan from the Tertiary period, known only as fossils. • NUMMULITE n. a fossil of the genus Nummulites and allied genera. |
| OUTNUMBER | • outnumber v. (Transitive, stative) to be more in number than somebody or something. • OUTNUMBER v. to surpass in number. |
| RUTHENIUM | • ruthenium n. A metallic chemical element (symbol Ru) with an atomic number of 44. • ruthenium n. (Countable) An atom of this element. • RUTHENIUM n. a metallic element of the platinum group. |
| SUBMENTUM | • submentum n. (Zoology) The basal part of the labium of insects, which bears the mentum. • SUBMENTUM n. the basal part of the labium of insects. |
| TENACULUM | • tenaculum n. A medical instrument consisting of a sharp hook attached to a handle; used mainly for taking up arteries and the like. • TENACULUM n. (Latin) a surgical hook or forceps. |
| UNGUENTUM | • UNGUENTUM n. (Latin) an ointment. |
| UNMATURED | • unmatured adj. Not matured. • UNMATURED adj. not matured. |
| UNMOUNTED | • unmounted v. Simple past tense and past participle of unmount. • unmounted adj. Not mounted (in various senses). • UNMOUNT v. to dismount. |
| UNTIMEOUS | • untimeous adj. (Archaic) untimely. • UNTIMEOUS adj. untimely. |
| UNTUMBLED | • untumbled adj. Not having been tumbled (smoothed or polished). • UNTUMBLED adj. not tumbled. |