ratite bird

ratite bird

noun

flightless birds having flat breastbones lacking a keel for attachment of flight muscles: ostriches;cassowaries;emus;moas;rheas;kiwis;elephant birds: Synonym: ratite flightless bird

数据来源：WordNet

1

Used in former classifications to include all ratite bird orders .

用于过时的分类法中，包含所有的平胸鸟目。
2

A ratite bird order : recently extinct flightless birds of New Zealand .

平胸鸟目；产于新西兰最近灭绝的不会飞的鸟类。
3

A ratite bird order : ostriches and related extinct birds ; known from the Pleistocene onward .

平胸鸟目之一；鸵鸟及与其有关的现已灭绝的鸟类；生活于洪积世以前。
4

A ratite bird order : flightless ground birds having vestigial wings and long bills and small eyes : kiwis .

一种平胸鸟目；小眼睛长嘴且翅膀已退化的不会飞的鸟类几维。
5

A ratite bird order : birds intermediate in characteristics between ostriches and emus : recent and extinct rheas .

平胸类鸟目之一；介于鸵鸟与鸸鹋之间；近来灭绝的美洲鸵。
6

A ratite bird order : cassowaries and emus .

平胸类鸟目之一；食火鸡和鸸鹋。