midrib

[ mid-rib ]

noun

, Botany.

1. the central or middle rib of a leaf.

midrib

/ ˈmɪdˌrɪb /

noun

1. the main vein of a leaf, running down the centre of the blade

midrib

/ mĭd′rĭb′ /

1. The central or main vein of a leaf, as in eudicots, magnoliids, and ferns. Midribs generally protrude from the underside of leaves with pinnate venation.
2. See more at venation

Word History and Origins

Origin of midrib¹

First recorded in 1690–1700; mid- + rib ¹

Example Sentences

Another species—D. hypoglossum—is characterised by the leaflets of the midrib bearing still smaller leaflets in the same manner.

From Project Gutenberg

It has no midrib or air-vessels, and the fruit is contained in forked receptacles at the tips of the branches.

From Project Gutenberg

It has a fibrous root, and a stalked, lanceolate, entire frond with a distinct midrib throughout.

From Project Gutenberg

"Now for the feathering," and Yan showed Sam how to split the midrib of a turkey feather and separate the vane.

From Project Gutenberg

Most of the lobes are attached to the wing of the midrib by a broad base: the lower ones sometimes have a short stalk.

From Project Gutenberg