| BULBOPHYLLUMS | Sorry, definition not available. |
| HYPERCAUTIOUS | • hypercautious adj. Especially or unreasonably cautious. • HYPERCAUTIOUS adj. excessively cautious. |
| HYPOSULPHURIC | • hyposulphuric adj. Alternative spelling of hyposulfuric. • HYPOSULPHURIC adj. denoting a kind of acid. |
| ICHTHYOSAURUS | • ichthyosaurus n. (Archaic) Alternative form of ichthyosaur. • ichthyosaurus n. Any members of the genus Ichthyosaurus. • Ichthyosaurus prop.n. A taxonomic genus within the family Ichthyosauridae – large, extinct marine reptiles. |
| PYROSULPHURIC | • pyrosulphuric adj. (Britain) Alternative spelling of pyrosulfuric. • PYROSULPHURIC adj. as in pyrosulphuric acid, a type of acid. |
| SULPHONYLUREA | • sulphonylurea n. Alternative spelling of sulfonylurea. • SULPHONYLUREA n. a synthetic compound used to reduce the level of glucose in the blood in diabetes mellitus. |
| SULPHUREOUSLY | • sulphureously adv. Archaic form of sulfurously. • SULPHUREOUS adv. pertaining to or like sulphur, also SULFUREOUS. |
| SUPERHUMANITY | • superhumanity n. The state or condition of being superhuman. • SUPERHUMANITY n. the state of being superhuman. |
| UNHEALTHFULLY | • unhealthfully adv. In an unhealthful manner. • UNHEALTHFUL adv. not healthful. |
| UNNEIGHBOURLY | • unneighbourly adj. Not neighbourly; antisocial. • unneighbourly adv. In a way that is not neighbourly. • UNNEIGHBOURLY adj. not like a neighbour, also UNNEIGHBORLY. |
| UNRIGHTEOUSLY | • unrighteously adv. In an unrighteous manner. • UNRIGHTEOUS adv. not righteous. |
| UNTRUSTWORTHY | • untrustworthy adj. Not deserving of trust; unreliable. • UNTRUSTWORTHY adj. not trustworthy. |
| UPRIGHTEOUSLY | • uprighteously adv. In an uprighteous or just manner. • UPRIGHTEOUSLY adv. (Shakespeare) with moral right. |