Ornithology. One or other of several birds of unrelated genera characterized by their stiff, spine-like or mucronate tail-feathers.
| 单词 | θ38773 | 
| 释义 | the world > animals > birds > parts of or bird defined by > 			[noun]		 > tail > feather(s) of > bird characterized by (1)		 spine-tail1839 Ornithology. One or other of several birds of unrelated genera characterized by their stiff, spine-like or mucronate tail-feathers. | 
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