英文名稱	中文名稱	備註
clonus	陣攣
clopitis	陰道炎
close breeding	至親配種
close field grazing	強度放牧；重(度)放牧
close grazing	強度放牧；重(度)放牧
close linebreeding	至親系統配種
close texture	緻密質地
closed breeding	閉鎖育種
closed flock	閉鎖群﹝羊、雞﹞
closed herd	閉鎖群﹝牛、馬、豬﹞
closing machine	封罐機；封口機
Closterium	新月藻屬
clostridial disease	梭菌症
Clostridium	芽孢梭菌屬
Clostridium acetobytylicum	丙酮丁醇芽孢梭菌
Clostridium botulinum	肉毒芽孢梭菌；臘腸毒梭菌
Clostridium chauv(a)ei	氣腫疽桿菌
Clostridium tetani	破傷風芽孢梭菌
clot	凝塊；血塊
clot-on-boiling test	(加)熱凝(固)試驗；煮沸試驗