[ kə'rʌɪnə , -'ri:- ]
■ noun ( plural ~e -ni: or ~s )
1》 Zoology a keel-shaped structure, especially the ridge of a bird's breastbone to which the main flight muscles are attached.
2》 Anatomy a cartilage situated at the point where the trachea (windpipe) divides into the two bronchi.
Derivatives
~l adjective
Origin
C18: from L., 'keel'.