张口病：由气管比翼线虫 (Syngamus trachea)引起的小鸡和或小火鸡的一种病，表现喘息和气哽- chameprosopy
- chancre
- chancriform
- chancroid
- chancroidal
- chancrous
- change
- Ch'ang Shan
- channel
- Ch'an su
- Chantemesse' reaction
- Chaoborus
- Chaos chaos
- Chaoul therapy,tube
- character
- characteristic
- characterization
- characterology
- charas
- charbon
- charcoal
- Charcot-Leyden crystals
- Charcot-Marie atrophy(type)
- Charcot-Marie-Tooth atrophy,disease,type
- Charcot-Neumann crystals