| ALABASTERS | • alabasters n. Plural of alabaster. • ALABASTER n. a soft, semitransparent gypsum. |
| ALCATRASES | • ALCATRAS n. (Arabic) a kind of large water bird. |
| APATOSAURS | • apatosaurs n. Plural of apatosaur. • APATOSAUR n. a kind of long-necked dinosaur, also APATOSAURUS. |
| AROMATASES | • aromatases n. Plural of aromatase. • AROMATASE n. an enzyme involved in the production of oestrogen. |
| ASPARTAMES | • aspartames n. Plural of aspartame. • ASPARTAME n. an artificial sweetener. |
| ASPARTATES | • aspartates n. Plural of aspartate. • ASPARTATE n. a salt of aspartic acid. |
| ASTRACHANS | • astrachans n. Plural of astrachan. • ASTRACHAN n. a closely-curled black or grey fur from the fleece of karakul lambs, also ASTRAKHAN. |
| ASTRAGALUS | • astragalus n. (Anatomy) The anklebone. • astragalus n. (Botany) A herb of the genus Astragalus. • Astragalus prop.n. A taxonomic genus within the family Fabaceae – the milk-vetches. |
| ASTRAKHANS | • astrakhans n. Plural of astrakhan. • Astrakhans n. Plural of Astrakhan. • ASTRAKHAN n. a closely-curled black or grey fur from the fleece of karakul lambs, also ASTRACHAN. |
| ASTRANTIAS | • astrantias n. Plural of astrantia. • ASTRANTIA n. a plant of the Astrantia genus of hardy, perennial umbelliferous plants with showy petallike bracts. |
| BALTHASARS | • Balthasars n. Plural of Balthasar. • BALTHASAR n. a large wine bottle containing 2.80 gallons, also BALTHAZAR, BELSHAZZAR. |
| PALAESTRAS | • palaestras n. Plural of palaestra. • PALAESTRA n. (historical) a wrestling school; hence, a gymnasium, or place for athletic exercise in general, also PALESTRA. |
| PARABLASTS | • parablasts n. Plural of parablast. • PARABLAST n. the yolk of an egg, such as a hen's egg, that undergoes meroblastic cleavage. |
| RASTAFARIS | • RASTAFARI n. a member of a West Indian cult which rejects western ideas and regards the Emperor Haile Selassie as divine. |
| SAMARITANS | • samaritans n. Plural of samaritan. • Samaritans n. Plural of Samaritan. • Samaritans prop.n. (UK) A telephone helpline providing support to those at risk of suicide. |
| SOLFATARAS | • solfataras n. Plural of solfatara. • SOLFATARA n. (Italian) a volcanic vent emitting only gases. |
| TARANTASES | • tarantases n. Plural of tarantas. • TARANTAS n. (Russian) a low four-wheeled carriage used in Russia, also TARANTASS. |
| TARSALGIAS | • tarsalgias n. Plural of tarsalgia. • TARSALGIA n. pain in the instep. |