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[skli-reng-kuh-muh] /sklɪˈrɛŋ kə mə/
noun, Botany.
supporting or protective tissue composed of thickened, dry, and hardened cells.
Origin of sclerenchyma
First recorded in 1860-65; scler- + (par)enchyma
Related forms
[skleer-eng-kim-uh-tuh s, skler-] /ˌsklɪər ɛŋˈkɪm ə təs, ˌsklɛr-/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for sclerenchyma
Historical Examples
  • In this group of species there is no segregation of sclerenchyma into an effective tissue.

    The Genus Pinus George Russell Shaw
  • Keel with sclerenchyma at its apex, and a small band of the same at the margins.

    Grasses H. Marshall Ward
  • Slight keel with sclerenchyma band: sclerenchyma at margin slight.

    Grasses H. Marshall Ward
  • The minute inner filaments of sclerenchyma are never continued far up the stalk, and are sometimes wanting altogether.

    Beautiful Ferns Daniel Cady Eaton
  • Vascular bundles of three orders, isolated, without girders, but with a small band of sclerenchyma above and below.

    Grasses H. Marshall Ward
  • The Panicums also come here, and differ according to the disposition of the sclerenchyma sheaths around the bundles.

    Grasses H. Marshall Ward
  • Keel pronounced, with one large vascular bundle and a sclerenchyma band occupying its crest.

    Grasses H. Marshall Ward
  • Girders to the primary bundles, but not very strong: marginal and other sclerenchyma faint, as is also the cuticle.

    Grasses H. Marshall Ward
  • Smooth below and devoid of keel, with sub-epidermal band of sclerenchyma, and similar tissue at the margin.

    Grasses H. Marshall Ward
  • sclerenchyma at tips of the ridges dense: smaller bands below: strong at margins.

    Grasses H. Marshall Ward
British Dictionary definitions for sclerenchyma


a supporting tissue in plants consisting of dead cells with very thick lignified walls
Derived Forms
sclerenchymatous (ˌsklɪərɛŋˈkɪmətəs) adjective
Word Origin
C19: from sclero- + parenchyma
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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sclerenchyma in Science
A supportive tissue of vascular plants, consisting of thick-walled, usually lignified cells. Sclerenchyma cells normally die upon reaching maturity but continue to fulfill their structural purpose in the plant. There are two types of sclerenchyma cells: fiber cells and sclereids. Compare collenchyma, parenchyma.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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