midrib

[ mid-rib ]
/ ˈmɪdˌrɪb /

noun Botany.

the central or middle rib of a leaf.

Origin of midrib

First recorded in 1690–1700; mid- + rib1

Example sentences from the Web for midrib

British Dictionary definitions for midrib

midrib
/ (ˈmɪdˌrɪb) /

noun

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

Scientific definitions for midrib

midrib
[ mĭdrĭb′ ]

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. See more at venation.