释义 |
air vesicle
air vesicle or air cavityn1. (Botany) a large air-filled intercellular space in some aquatic plants2. (Botany) a large intercellular space in a leaf into which a stoma opensair′ ves`icle n. a large, air-filled pocket occurring chiefly in plants that float on water, as kelps. air vesicle
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