Biology. the release of materials by the splitting open of an organ or tissue.
Botany. the natural bursting open of capsules, fruits, anthers, etc., for the discharge of their contents.
Surgery. the bursting open of a surgically closed wound.

1820–30; < Neo-Latin dēhiscentia, equivalent to Latin dēhiscent- stem of dēhiscēns, present participle of dēhiscere (see dehisce) + -ia; see -ence

dehiscent, adjective
nondehiscent, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
dehiscent (dɪˈhɪsənt)
(of fruits, anthers, etc) opening spontaneously to release seeds or pollen

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

1828, from Mod.L. dehiscentia, from dehiscentem, prp. of dehiscere "to gape, open, split down" (of the earth, etc.).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

dehiscence de·his·cence (dĭ-hĭs'əns)
A bursting open or splitting along natural or sutured lines.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
dehiscence   (dĭ-hĭs'əns)  Pronunciation Key 
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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Example sentences for dehiscent
Fruit a capsule, fleshy or dry, dehiscent or indehiscent, sometimes berrylike.
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