pulvinate

pul.vi.nate

adj.（形容词）
Shaped like a cushion.
垫状的
Botany Having a swelling at the base. Used of a leafstalk.
【植物学】 基部膨胀的。用于叶柄

来源：
Latin pulvon3tus
拉丁语 pulvon3tus
from pulvonus [cushion]
源自 pulvonus [垫子]