| CUPIDINOUS | • cupidinous adj. Characterized by or related to cupidity (greed, desire for wealth). • CUPIDINOUS adj. full of desire, amorous. |
| DIUTURNITY | • diuturnity n. (Rare, obsolete) Long duration; lastingness. • DIUTURNITY n. long duration; lastingness. |
| FUSULINIDS | • fusulinids n. Plural of fusulinid. • FUSULINID n. any of a family of extinct marine foraminifera. |
| HIRUDINOUS | • HIRUDINOUS adj. of or like hirudin, a substance present in the salivary glands of leeches, used as an anticoagulant. |
| INDIVIDUUM | • individuum n. An indivisible entity. • individuum n. A single individual person or thing. • INDIVIDUUM n. (Latin) an indivisible entity; an individual person. |
| INQUIETUDE | • inquietude n. A condition of being restless, uneasy or nervous. • INQUIETUDE n. a disturbed state. |
| NIDIFUGOUS | • nidifugous adj. (Biology, of a bird) That leaves the nest shortly after hatching. • NIDIFUGOUS adj. leaving the nest soon after hatching. |
| OUTGUIDING | • OUTGUIDE v. to surpass in guiding. |
| PINGUITUDE | • pinguitude n. Fatness; obesity; the process of growing fat. • PINGUITUDE n. fatness. |
| SIPUNCULID | • sipunculid n. (Zoology) Any member of the clade Sipuncula. • sipunculid n. (Zoology, uncommon) Any member of the family Sipunculidae, the peanut worms. • SIPUNCULID n. a kind of marine worm with a retractile proboscis, also SIPUNCULOID. |
| UNBUILDING | • unbuilding v. Present participle of unbuild. • UNBUILD v. to demolish; to raze. |
| UNPURIFIED | • unpurified adj. Not purified; impure. • UNPURIFIED adj. not purified. |
| UNUTILISED | • unutilised adj. Alternative spelling of unutilized. • UNUTILISED adj. not utilised, also UNUTILIZED. |
| UNUTILIZED | • unutilized adj. Not utilized; unused. • UNUTILIZED adj. not utilized, also UNUTILISED. |
| UPBUILDING | • upbuilding v. Present participle of upbuild. • upbuilding n. The process of building something up; gradual development or accumulation. • UPBUILDING n. development; edification. |
| UREDINIUMS | • UREDINIUM n. a uredosorus, a sorus or pustule in which urediniospores are formed, also UREDIUM. |