midrib

/mid-rib/US // ˈmɪdˌrɪb //UK // (ˈmɪdˌrɪb) //

中脉,中肋,中肋骨,中肋部

Definitions

n.名词 noun

Another species—D. hypoglossum—is characterised by the leaflets of the midrib bearing still smaller leaflets in the same manner.
It has no midrib or air-vessels, and the fruit is contained in forked receptacles at the tips of the branches.
It has a fibrous root, and a stalked, lanceolate, entire frond with a distinct midrib throughout.
"Now for the feathering," and Yan showed Sam how to split the midrib of a turkey feather and separate the vane.
Most of the lobes are attached to the wing of the midrib by a broad base: the lower ones sometimes have a short stalk.