| CHANCELLORSHIPS | • chancellorships n. Plural of chancellorship. • CHANCELLORSHIP n. the office of chancellor. |
| CHANNELOPATHIES | • channelopathies n. Plural of channelopathy. |
| CHLOROETHYLENES | • chloroethylenes n. Plural of chloroethylene. • CHLOROETHYLENE n. vinyl chloride. |
| CHLORTHALIDONES | • CHLORTHALIDONE n. a diuretic used in the treatment of oedema, hypertension, and diabetes insipidus. |
| DICHLOROETHANES | • dichloroethanes n. Plural of dichloroethane. • DICHLOROETHANE n. a colorless toxic liquid compound that is used chiefly as a solvent. |
| ENCEPHALOGRAPHS | • encephalographs n. Plural of encephalograph. • ENCEPHALOGRAPH n. an instrument for recording brain images. |
| ETHNOHISTORICAL | • ethnohistorical adj. Relating to ethnohistory. • ETHNOHISTORICAL adj. relating to ethnohistory, also ETHNOHISTORIC. |
| HALFPENNYWORTHS | • halfpennyworths n. Plural of halfpennyworth. • HALFPENNYWORTH n. as much as is sold for a halfpenny or is worth a halfpenny. |
| HELMINTHOLOGIES | • HELMINTHOLOGY n. the study of parasitic worms. |
| HELMINTHOLOGIST | • helminthologist n. One versed in helminthology. • HELMINTHOLOGIST n. a specialist in helminthology. |
| METHYLTHIONINES | • METHYLTHIONINE n. as in methylthionine chloride, a dark green dye used as a stain, antiseptic etc. |
| NONPHILOSOPHERS | • nonphilosophers n. Plural of nonphilosopher. • NONPHILOSOPHER n. someone who is not a philosopher. |
| ORNITHODELPHOUS | • ORNITHODELPHOUS adj. of or like the Ornithodelphia, monotremes, also ORNITHODELPHIAN, ORNITHODELPHIC. |
| PHENYLTHIOUREAS | • phenylthioureas n. Plural of phenylthiourea. • PHENYLTHIOUREA n. a crystalline compound used to test for the presence of a certain dominant gene (the compound tasting bitter to those who possess the gene). |
| PHTHALOCYANINES | • phthalocyanines n. Plural of phthalocyanine. • PHTHALOCYANINE n. any of a group of green and blue organic colouring matters of great fastness and brilliance, also PHTHALOCYANIN. |
| RHINENCEPHALONS | • RHINENCEPHALON n. the olfactory lobe of the brain. |
| SCHOOLTEACHINGS | • SCHOOLTEACHING n. teaching as a profession. |
| SULPHONMETHANES | • SULPHONMETHANE n. a colourless crystalline compound used medicinally as a hypnotic, also SULFONMETHANE. |
| THOUGHTLESSNESS | • thoughtlessness n. Disregard for other’s feelings. • thoughtlessness n. Heedless disregard for the consequences of one’s actions. • THOUGHTLESSNESS n. the state of being thoughtless. |
| TRIHALOMETHANES | • trihalomethanes n. Plural of trihalomethane. • TRIHALOMETHANE n. any of various derivatives of methane such as chloroform, that have three halogen atoms per molecule and are formed esp. during the chlorination of drinking water. |