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单词 raft-breasted
释义

> as lemmas

raft-breasted
raft-breasted adj. Ornithology (now rare) (of a bird) having no keel to the sternum; ratite.
ΚΠ
1890 Cent. Dict. Raft-breasted, ratite.
1891 Geol. Mag. 8 379 These Ratite, or raft-breasted flightless birds, have been found in a fossil state in England, France, India, Madagascar, New Zealand, Australia, and America.
1964 T. J. Parker & W. A. Haswell Text-bk. Zool. (ed. 7) II. 606 Several flying birds in specialised habitats have lost the carinate condition, and become raft-breasted in varying degree along with the abandonment of flying.
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