midrib
Americannoun
noun
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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.
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See more at venation
Etymology
Origin of midrib
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A leaf petiole attaches to the main petiole or the midrib, not the stem, whereas a leaflet petiole attaches directly to the stem at a bud node.
From Textbooks ● Jun. 9, 2022
Figure 23.1 A locust leaf consists of leaflets arrayed along a central midrib.
From Textbooks ● Jun. 9, 2022
Most leaves have a midrib, which travels the length of the leaf and branches to each side to produce veins of vascular tissue.
From Textbooks ● Jun. 9, 2022
Eggs that are laid in the midrib on the underside of leaves first hatch in mid-May, but those infestations are followed by later generations in June, July and August.
From Seattle Times ● Jun. 20, 2018
Above him was a bright green tube that looked like a midrib of a large leaf.
From "Healer of the Water Monster" by Brian Young
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
