Last Updated：2025/11/22

(ornithology) A small projection of three or four feathers on the first digit of the wing on some birds.

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alula

Source Word

alula

IPA(Pronunciation)

Noun

(ornithology) A small projection of three or four feathers on the first digit of the wing on some birds.

Japanese Meaning

鳥の翼の第一指部に存在する、3～4本の小羽が生えている小さな突起（オルニソロジーにおける構造）

The swallow adjusted its alula before landing to maintain lift at low speed.

ツバメは着地前に翼の第一指にある3〜4枚の小さな羽の突起を調整して、低速でも揚力を保った。

Sense（1）

(ornithology) A small projection of three or four feathers on the first digit of the wing on some birds.

On the wing, even the tiny “thumb feather” or alula can be seen.

alulae

（ plural ）

alulas

（ plural ）