| ABORTIONIST | • abortionist n. (Now sometimes offensive) A person who performs abortions, especially illegally or secretly. • abortionist n. (Chiefly derogatory) A person who advocates for or supports the legality of abortion. • ABORTIONIST n. one who induces abortions. |
| ADOPTIONIST | • adoptionist n. (Christianity) One who believes in or supports adoptionism. • adoptionist n. (Uncommon) One who supports adoption. • adoptionist adj. Of or pertaining to adoptionism. |
| AETIOLOGIST | • aetiologist n. One who studies aetiology. • ætiologist n. Obsolete form of etiologist. • AETIOLOGIST n. a student of aetiology, also ETIOLOGIST. |
| ATOMISATION | • atomisation n. Alternative spelling of atomization. • ATOMISATION n. the reduction of liquids to the form of spray, also ATOMIZATION. |
| COGITATIONS | • cogitations n. Plural of cogitation. • COGITATION n. the act of cogitating. |
| EROTISATION | • EROTISATION n. the act of erotising, also EROTIZATION. |
| ETIOLATIONS | • etiolations n. Plural of etiolation. • ETIOLATION n. the operation of blanching plants, by excluding the light of the sun; the condition of a blanched plant. |
| INTONATIONS | • intonations n. Plural of intonation. • INTONATION n. something that is intoned. |
| MOTIVATIONS | • motivations n. Plural of motivation. • MOTIVATION n. the act of motivating. |
| NITROSATION | • nitrosation n. (Organic chemistry) The conversion of an amine or other compound into a nitroso compound. • NITROSATION n. conversion of ammonium salts into nitrites. |
| NOTIONALIST | • notionalist n. Synonym of notionist. • NOTIONALIST n. a theorist. |
| OBSTIPATION | • obstipation n. Severe constipation caused by intestinal obstruction. • OBSTIPATION n. a severe and obstinate constipation. |
| OSCITATIONS | • oscitations n. Plural of oscitation. • OSCITATION n. yawning, sleepiness. |
| TOSTICATION | • tostication n. (Archaic) fuddlement; perplexity. • TOSTICATION n. perplexity. |
| TOXICATIONS | • toxications n. Plural of toxication. • TOXICATION n. the state of being toxic. |
| VOLITATIONS | • volitations n. Plural of volitation. • VOLITATION n. flying, flight. |