| 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. |
| HYDROCEPHALUSES | • hydrocephaluses n. Plural of hydrocephalus. • HYDROCEPHALUS n. an accumulation of serous fluid within the cranial cavity, also HYDROCEPHALY. |
| 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. |
| HYPOSULPHATES | • hyposulphates n. Plural of hyposulphate. • HYPOSULPHATE n. a dithionate. |
| ITHYPHALLUSES | • ITHYPHALLUS n. an erect phallus. |
| PHILADELPHUSES | • philadelphuses n. Plural of philadelphus. • PHILADELPHUS n. a flowering shrub, aka mock orange. |
| PLOUGHSHARES | • ploughshares n. Plural of ploughshare. • PLOUGHSHARE n. the cutting blade of a plough, also PLOWSHARE. |
| SCAPHOCEPHALOUS | • scaphocephalous adj. Synonym of scaphocephalic. • SCAPHOCEPHALOUS adj. having an abnormally long and narrow boat-shaped skull. |
| SCAPHOCEPHALUS | • SCAPHOCEPHALUS n. an abnormally long and narrow boat-shaped skull. |
| SNAPHAUNCHES | • SNAPHAUNCH n. (obsolete) a freebooter; a flintlock; a spring catch or trap, also SNAPHANCE, SNAPHAUNCE. |
| SPRACHGEFUHLS | • SPRACHGEFUHL n. (German) an intuitive sense of what is linguistically appropriate. |
| 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. |
| SUPERHIGHWAYS | • superhighways n. Plural of superhighway. • SUPERHIGHWAY n. a multilane highway (as an expressway or turnpike) designed for high-speed traffic. |
| 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. |