| ANISOPHYLLOUS | • anisophyllous adj. (Botany) Having unequal leaves. • ANISOPHYLLOUS adj. of leaves, usually a pair, of differing size and shape. |
| DEINONYCHUSES | • deinonychuses n. Plural of deinonychus. • DEINONYCHUS n. any of a genus of small bipedal carnivorous theropod dinosaurs from the Cretaceous. |
| HALFSERIOUSLY | • HALFSERIOUSLY adv. in a partially joking way. |
| HYPOSULPHITES | • hyposulphites n. Plural of hyposulphite. • HYPOSULPHITE n. a salt of hyposulphurous 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. |
| ISOCHRONOUSLY | • isochronously adv. In an isochronous manner. • ISOCHRONOUS adv. having the same duration; recurring at equal intervals. |
| ITHYPHALLUSES | • ITHYPHALLUS n. an erect phallus. |
| MISCHIEVOUSLY | • mischievously adv. In a mischievous manner. • MISCHIEVOUS adv. given to mischief. |
| NEUROSYPHILIS | • neurosyphilis n. (Pathology) A syphilis infection affecting the nervous system. • NEUROSYPHILIS n. a syphilitic infection affecting the central nervous system. |
| PHYSIOLOGUSES | • PHYSIOLOGUS n. a work containing descriptions of animals; a bestiary. |
| PHYSOCLISTOUS | • physoclistous adj. Relating to physoclists. • PHYSOCLISTOUS adj. of fishes, having an air bladder that is not connected to the alimentary canal. |
| POLYSULPHIDES | • polysulphides n. Plural of polysulphide. • POLYSULPHIDE n. a sulfide containing two or more atoms of sulfur in the molecule, also POLYSULFIDE. |
| SUPERHIGHWAYS | • superhighways n. Plural of superhighway. • SUPERHIGHWAY n. a multilane highway (as an expressway or turnpike) designed for high-speed traffic. |
| SUPERPHYSICAL | • superphysical adj. Above or beyond physics; not explainable by physical laws. • SUPERPHYSICAL adj. being above or beyond the physical world or explanation on physical principles. |
| SURVEYORSHIPS | • surveyorships n. Plural of surveyorship. • SURVEYORSHIP n. the office of surveyor. |
| SYMPHONIOUSLY | • symphoniously adv. In a symphonious manner. • SYMPHONIOUS adv. agreeing esp. in sound. |