lig·ule /ˈlɪ(ˌ)gju(ə)l/
小舌,舌狀片
Lig·ule n.
1. Bot. (a) The thin and scarious projection from the upper end of the sheath of a leaf of grass. (b) A strap-shaped corolla of flowers of Compositæ.
2. Anat. A band of white matter in the wall of fourth ventricle of the brain.
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ligule
n : (botany) any appendage to a plant that is shaped like a
strap