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[mid-rib] /ˈmɪdˌrɪb/
noun, Botany.
the central or middle rib of a leaf.
Origin of midrib
First recorded in 1690-1700; mid- + rib1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for midribs
Historical Examples
  • The color is lighter than the other species and the leaves are armed along the edges and the midribs.

  • The midribs are removed and the segments are rolled into round bundles, say by fives.

    Philippine Mats Hugo H. Miller
  • This convexity is rendered possible by the support afforded by the basal edges of the six midribs.

  • They are usually twice pinnatifid, the pinnules being connected by a very narrow foliaceous border along the midribs.

    Beautiful Ferns Daniel Cady Eaton
  • Leaves long and narrow; the veins and midribs green; the head is greenish, and generally covered by the leaves.

  • Also, she had ten coils of dewarra (cowrie shells threaded on the midribs of the coco-nut leaf, and used as the native currency).

  • They are the persistent spiny stalks or midribs of the older leaves from which the leaflets have dropped away.

    The Romance of Plant Life G. F. Scott Elliot
  • The midribs are removed while green, and the leaves are rolled into bundles of convenient size, say by fives.

    Philippine Mats Hugo H. Miller
  • Remove the leaves, cut the midribs into equal lengths, tie in small bunches, boil thirty minutes.

    Fifty Salads Thomas Jefferson Murrey
  • The bases of the midribs widen out and wrap round the stem like a kind of sheath, as almost all leaf-stalks do to some extent.

British Dictionary definitions for midribs


the main vein of a leaf, running down the centre of the blade
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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midribs in Science
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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