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单词 pygostyle
释义

Definition of pygostyle in English:

pygostyle

noun ˈpʌɪɡə(ʊ)stʌɪlˈpīɡəˌstīl
Ornithology
  • (in a bird) a triangular plate formed of the fused caudal vertebrae, typically supporting the tail feathers.

    Example sentencesExamples
    • All birds, both fossil and modern, have reduced the tail to a mass of fused vertebrae termed the pygostyle.
    • The tail is shortened and fused to form a pygostyle which bears tail feathers (retrices).

Origin

Late 19th century: from Greek pugē 'rump' + stulos 'column'.

 
 

Definition of pygostyle in US English:

pygostyle

nounˈpīɡəˌstīl
Ornithology
  • (in a bird) a triangular plate formed of the fused caudal vertebrae, typically supporting the tail feathers.

    Example sentencesExamples
    • The tail is shortened and fused to form a pygostyle which bears tail feathers (retrices).
    • All birds, both fossil and modern, have reduced the tail to a mass of fused vertebrae termed the pygostyle.

Origin

Late 19th century: from Greek pugē ‘rump’ + stulos ‘column’.

 
 
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更新时间:2024/12/23 23:47:05