Of a leaf shape; round with the stem attached near the center of the lower surface rather than the margin as a nasturtium leaf e. g...

一种叶子形状；圆形，其茎依附在较低表面的中心附近而非边缘，比如旱金莲花叶等等。

youdao

Water surges from the cells on the inside of the leaf to those on the outside, causing the leaf to rapidly flip in shape from convex to concave, like a soft contact lens.

水从叶子内部的细胞涌向外面的细胞，导致叶子迅速地从凸向凹翻转，就像一片柔软的隐形眼镜。

youdao

So it's the veins — the skeleton of the leaf — which determine whether you will have a classic maple shape or a blade-like willow.

因此叶脉——树叶的骨架决定了树叶是典型的枫叶形状还是尖刀似的柳叶形状。

youdao

Toyota executives wear green lapel pins on their suits and have plastered Toyota factories with images of a green leaf in the shape of a car.

FORBES: Green, All Right

The cost drops 30% on a Mediterranean hand-painted dinner plate if you get a painter to use a sponge cut in the shape of a leaf instead of laboring over brush strokes.

FORBES: The logistics of a dinner plate