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单词 θ38732
释义
the world > animals > birds > parts of or bird defined by > [noun] > beak or bill > upper or lower beak > part or covering of lower beak (4)
gonys1836

The ‘keel’ of a bird's bill; the inferior margin of the symphysis of the lower jaw.

interramicorn1866

A separate piece of the horny sheath of the bill situated between the rami of the lower jaw in the albatross, etc.

ramicorn1866

Ornithology. A part of the horny sheath of a bird's bill that covers the lower part of the lower mandible (either one on each side, or fused into…

gnathotheca1870

the horny covering of the lower beak of a bird.

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更新时间:2024/12/24 3:45:26