| LUTETIUM | • lutetium n. A chemical element (symbol Lu) with an atomic number of 71, a silvery-white metal which resists corrosion in dry air. • LUTETIUM n. a rare earth element, also LUTECIUM. |
| MATUTINE | • matutine adj. Of or relating to early morning; occurring in the early morning; matutinal. • matutine adj. (Astrology) Before the sun (of the rising of a planet or star); that rises before the sun (of a planet or star). • MATUTINE adj. relating to or occurring in the morning, also MATUTINAL. |
| MINUTEST | • minutest adj. Superlative form of minute: most minute Smallest, littlest, tiniest. • MINUTE adj. very small. |
| MULTEITY | • multeity n. (Rare) manifoldness; multiplicity; the quality of being many. • MULTEITY n. manifoldness. |
| MULTIJET | • multijet adj. Of or pertaining to multiple jets (spouts or nozzles). • multijet adj. (Physics) Of or pertaining to multiple jets (narrow cones of particles). • MULTIJET adj. having more than two jets. |
| MUSTIEST | • mustiest adj. Superlative form of musty: most musty. • MUSTY adj. having a stale odour. |
| MUTATIVE | • mutative adj. Relating to mutation. • MUTATIVE adj. changing, mutable, also MUTATORY. |
| MUTICATE | • MUTICATE adj. in botany, having no point or awn, also MUTICOUS. |
| MUTILATE | • mutilate v. To physically harm as to impair use, notably by cutting off or otherwise disabling a vital part, such as a limb. • mutilate v. To destroy beyond recognition. • mutilate v. (Figuratively) To render imperfect or defective. |
| SMUTTIER | • smuttier adj. Comparative form of smutty: more smutty. • SMUTTY adj. sexually suggestive. |
| TIMEOUTS | • timeouts n. Plural of timeout. • timeouts v. Third-person singular simple present indicative form of timeout. • time-outs n. Plural of time-out. |
| TITMOUSE | • titmouse n. Any small passerine bird of the family Paridae, which are found in the woods of the Northern Hemisphere and of Africa. • TITMOUSE n. any of various small birds of the tit genus, also TITMOSE. |
| TUMPIEST | • TUMPY adj. hummocky. |
| ULTIMATE | • ultimate adj. Final; last in a series. • ultimate adj. (Of a syllable) Last in a word or other utterance. • ultimate adj. Being the greatest possible; maximum; most extreme. |
| UMPTIEST | • UMPTY adj. designating an indefinitely large number, also UMPTEEN. |
| UMPTIETH | • umptieth adj. (Informal) A generic ordinal number; a last or one of the latest in a long series; implies repetition. • UMPTIETH adj. denoting an indefinitely large number in a sequence, also UMPTEENTH, UMTEENTH. |