英文名稱	中文名稱	備註
cotton seed hull	棉籽殼
cotton seed meal	棉籽粕
cotyledon	絨毛葉；子葉
couchgrass	魁克麥草﹝歐洲牧地野草﹞
cough	dry	乾咳
cough	hacking	頻頻乾咳
cough	hard	苦咳
cough	moist	濕咳
cough	paroxysmal	陣發性咳
cough	teasing	煩咳
cough	tight	艱咳
cough	咳嗽
cough reflex	咳嗽反射
coumarin	香豆素
counter-irritant	誘導藥；抗刺激藥
counterbalance	平衡(裝置)；配衡
countercurrent	逆流；對流
county agent	推廣員；農區指導員
couping	相吸
coupling phase	交尾期