释义
n.
Botany the stalk that joins a leaf to a stem
【植】 叶柄,梗。
Zoology a slender stalk between two structures, especially that between the abdomen and thorax of a wasp or ant
【动】 (尤指黄蜂或蚂蚁腹胸之间的)腹柄,柄。
词源
"mid 18th cent.: from French pétiole, from Latin petiolus ‘little foot, stalk’."