| CATECHUMENSHIPS | • CATECHUMENSHIP n. the office of catechumen. |
| CHAPTERHOUSES | • chapterhouses n. Plural of chapterhouse. • chapter-houses n. Plural of chapter-house. • chapter␣houses n. Plural of chapter house. |
| EXOPHTHALMUSES | • EXOPHTHALMUS n. abnormal protrusion of the eyeball, also EXOPHTHALMOS. |
| HYDROSULPHATES | • hydrosulphates n. Plural of hydrosulphate. • HYDROSULPHATE n. any quaternary acid salt formed by addition of an organic base to sulphuric acid, such as aniline hydrosulphate. |
| HYDROSULPHITES | • hydrosulphites n. Plural of hydrosulphite. • HYDROSULPHITE n. a salt of hydrosulphurous acid; esp. the sodium salt, used as a reagent. |
| HYPOSULPHATES | • hyposulphates n. Plural of hyposulphate. • HYPOSULPHATE n. a dithionate. |
| HYPOSULPHITES | • hyposulphites n. Plural of hyposulphite. • HYPOSULPHITE n. a salt of hyposulphurous acid. |
| HYPOTHENUSES | • hypothenuses n. (Dated) plural of hypothenuse. • HYPOTHENUSE n. the longest side of a right-angled triangle, also HYPOTENUSE. |
| ITHYPHALLUSES | • ITHYPHALLUS n. an erect phallus. |
| PHOSPHURETS | • phosphurets n. Plural of phosphuret. • PHOSPHURET n. (obsolete) a phosphide, also PHOSPHORET. |
| STROPHANTHUSES | • strophanthuses n. Plural of strophanthus. • STROPHANTHUS n. a plant of the African and Asiatic genus Strophanthus, of the periwinkle family. |
| SULPHATHIAZOLES | • sulphathiazoles n. Plural of sulphathiazole. • SULPHATHIAZOLE n. a sulphonamide formerly used in human medicine against staphylococcal infection (now only used in veterinary medicine), also SULFATHIAZOLE. |
| SULPHONMETHANES | • SULPHONMETHANE n. a colourless crystalline compound used medicinally as a hypnotic, also SULFONMETHANE. |
| SUPERPHOSPHATE | • superphosphate n. A fertilizer produced by the action of concentrated sulfuric acid on powdered phosphate rock. • superphosphate n. A phosphate containing the greatest amount of phosphoric acid that can combine with the base. • SUPERPHOSPHATE n. acid phosphate. |
| SUPERPHOSPHATES | • superphosphates n. Plural of superphosphate. • SUPERPHOSPHATE n. acid phosphate. |
| THIOSULPHATES | • thiosulphates n. Plural of thiosulphate. • THIOSULPHATE n. any salt of thiosulphuric acid, also THIOSULFATE. |