| EURYPTERIDS | • eurypterids n. Plural of eurypterid. • EURYPTERID n. any of an order of large extinct aquatic Paleozoic arthropods related to the horseshoe crab. |
| EURYPTEROID | • eurypteroid adj. (Paleontology) Like, or pertaining to, the genus Eurypterus. • EURYPTEROID adj. like a member of the Eurypterida, a fossil order of scorpion-like aquatic animals. • EURYPTEROID n. a eurypterid. |
| HYPERDRIVES | • hyperdrives n. Plural of hyperdrive. |
| HYPERMETRIC | • hypermetric adj. Having or relating to any syllables that are in a line beyond what the meter calls for. • hypermetric adj. Larger than normally measured. • HYPERMETRIC adj. above average height. |
| HYPERMILERS | • hypermilers n. Plural of hypermiler. |
| HYPEROREXIA | • HYPEROREXIA n. compulsive overeating. |
| PEREGRINITY | • peregrinity n. (Obsolete) The quality of being foreign or strange. • peregrinity n. (Obsolete) travel; wandering. • PEREGRINITY n. foreignness, outlandishness. |
| PERFERVIDLY | • perfervidly adv. In a perfervid manner. • PERFERVID adv. extremely or excessively passionate. |
| PREDELIVERY | • predelivery adj. Before a delivery. • predelivery n. A delivery made earlier than requested or anticipated. • PREDELIVERY n. the act of delivering in advance of need, use or expectation of the thing delivered. |
| PRELITERACY | • preliteracy n. The period before literacy, when a person or culture has not yet learned to read and write. • PRELITERACY n. the state of being preliterate, not having developed a written language. |
| PRELITERARY | • preliterary adj. Before the development of literature. • PRELITERARY adj. before the written word. |
| PYROMERIDES | • PYROMERIDE n. a nodular rhyolite. |
| PYROMETRIES | • PYROMETRY n. the art of measuring degrees of heat, or the expansion of bodies by heat. |
| REPRESSIBLY | • REPRESSIBLE adv. that can be repressed. |
| SPERRYLITES | • sperrylites n. Plural of sperrylite. • SPERRYLITE n. an arsenide of platinum, the only known compound of platinum occurring in nature. |
| TYPEWRITERS | • typewriters n. Plural of typewriter. • TYPEWRITER n. a machine, usually with a keyboard, for printing as a substitute for handwriting. |