The arrangement or disposition of the feathers of a bird, esp. where this occurs in distinct tracts (pterylae); an instance of this.
| 单词 | θ38827 |
| 释义 | the world > animals > birds > feather > [noun] > clump of or pteryla > arrangement of (1) pterylosis1867 The arrangement or disposition of the feathers of a bird, esp. where this occurs in distinct tracts (pterylae); an instance of this. |
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