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单词 limb
释义
limb  2 (lĭm)
n.
1. Astronomy The circumferential edge of the apparent disk of a celestial body.
2. Mathematics The edge of a graduated arc or circle used in an instrument to measure angles.
3. Botany The expanded tip of a plant organ, such as a petal or corolla lobe.

[Middle English limbe, graduated edge of an astronomical instrument, from Old French, from Latin limbus, border.]
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更新时间:2025/2/23 9:40:22