carina
/kəˈraɪnə/noun
(pl. carinae /-niː/ 或carinas)
1- chiefly Biology a keel-shaped structure, in particular【主生】龙骨状突起, 尤指：
1.1
- Zoology the ridge of a bird's breastbone, to which the main flight muscles are attached【动】（鸟的）胸骨突起, （胸骨）龙骨突起。
1.2
- Anatomy a cartilage situated at the point where the trachea (windpipe) divides into the two bronchi【剖】隆凸, 嵴状结构。
派生词
carinal
adjective词源
early 18th cent.: from Latin, 'keel'.