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[dih-his] /dɪˈhɪs/
verb (used without object), dehisced, dehiscing.
to burst open, as capsules of plants; gape.
Origin of dehisce
1650-60; < Latin dēhiscere to gape, part, equivalent to dē- de- + hiscere to gape, yawn (hi(āre) to yawn + -scere inchoative suffix) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for dehisce
  • The anthers of the triploid plants usually dehisce, but the plants are highly sterile.
  • They dehisce by a longitudinal cleft twisting into a spiral after flowering.
  • Capsules dehisce in autumn, releasing thousands of seeds, which are primarily wind-dispersed.
  • Some herbaceous species have capsules or fruits that dehisce explosively.
  • When the seed capsules are mature they dehisce explosively, dispersing the seed up to several meters.
  • As they wilt the anthers crack open and more pollen is available than if the anthers dehisce on the plants.
British Dictionary definitions for dehisce


(intransitive) (of fruits, anthers, etc) to burst open spontaneously, releasing seeds, pollen, etc
Word Origin
C17: from Latin dēhiscere to split open, from de- + hiscere to yawn, gape
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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dehisce in Medicine

dehisce de·hisce (dĭ-hĭs')
v. de·hisced, de·hisc·ing, de·hisc·es
To rupture or break open, as a surgical wound.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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dehisce in Science
The spontaneous opening at maturity of a plant structure, such as a fruit, anther, or sporangium, to release its contents. Compare indehiscence.

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