| REX | • rex n. An animal which has a genetic recessive variation that causes the guard hairs to be very short or fully lacking. • Rex prop.n. (Formal, usually italicized) The reigning king. • Rex prop.n. A male given name from Latin coined in the nineteenth century from Latin rex "king," rarely given today. |
| GREX | • grex n. (Biology) A multicellular aggregate of amoeba. • grex n. (Horticulture) A kind of group used in horticultural nomenclature, applied to the progeny of an artificial… • GREX n. (Latin) a group of plants with a common hybrid ancestor. |
| PREX | • prex n. (US, university slang) A president, especially of a university. • prex n. Prefix. • PREX n. (US slang) the president of a college, also PREXIE, PREXY. |
| CAREX | • carex n. Any member of the genus Carex of sedges. • Carex prop.n. A taxonomic genus within the family Cyperaceae – the true sedge. • Carex prop.n. A taxonomic section within the family Cyperaceae – Carex sect. Carex. |
| FOREX | • forex n. Short for foreign exchange. • FOREX n. (short for) foreign exchange. |
| LUREX | • lurex n. Alternative letter-case form of Lurex. • Lurex n. A form of yarn (or fabric made from it) that incorporates a glittering metallic thread. • LUREX n. (tradename) a thin glittery thread. |
| MIREX | • mirex n. (Organic chemistry) The pesticide and fire retardant perchloropentacyclodecane, which is a persistent… • MIREX n. an insecticide. |
| MUREX | • murex n. Any of the genus Murex of marine gastropods. • Murex prop.n. A taxonomic genus within the family Muricidae – the murex gastropods once used to produce Tyrian purple. • MUREX n. (Latin) a genus of shellfish, yielding a purple dye. |
| PYREX | • pyrex n. A kind of heat-resistant borosilicate glass, made by mixing a high concentration of boron oxides into… • pyrex n. (By extension) Any borosilicate glass. • pyrex n. (By extension) Any glass capable of withstanding high temperatures, such as tempered glass suitable for cooking. |
| SOREX | • Sorex prop.n. A taxonomic genus within the family Soricidae – red-toothed shrews. • SOREX n. (Latin) the common shrew. |
| IMBREX | • imbrex n. (Archaeology) A roof tile common in Ancient Greek and Roman architecture, used in an overlapping formation… • IMBREX n. (Latin) in Roman buildings, one of a series of usually curved tiles fitting over flat tiles. |
| INTERREX | • interrex n. (History) An official in Ancient Rome who acted as single head of state during the interregnum between two consulates. • interrex n. (History) An equivalent regent from the death of a Polish king till the election and enthronement of his successor. • interrex n. (Figuratively) A similar interim ruler, CEO, etc. |