Spurious primary

(Zool.)

the first, or outer, primary quill when rudimentary or much reduced in size, as in certain singing birds.

See also: Spurious

随便看

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。