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or diecious

[dahy-ee-shuh s] /daɪˈi ʃəs/
adjective, Biology.
(especially of plants) having the male and female organs in separate and distinct individuals; having separate sexes.
Origin of dioecious
1740-50; < New Latin Dioeci(a) a class name (di- di-1 + Greek oikía a house, dwelling, spelling variant of oîkos) + -ous
Related forms
dioeciously, adverb
dioeciousness, noun
[dahy-ee-siz-uh m] /daɪˈi sɪz əm/ (Show IPA),
noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for dioecism


(of some plants) having the male and female reproductive organs in separate flowers on separate plants Compare monoecious
Derived Forms
dioeciously, dieciously, dioicously, adverb
dioeciousness, dieciousness, dioicousness, noun
Word Origin
C18: from New Latin Dioecia name of class, from di1 + Greek oikia house, dwelling
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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dioecism in Medicine

dioecious di·oe·cious or di·e·cious (dī-ē'shəs)
Of or relating to organisms, especially plants, having the male and female reproductive organs borne on separate individuals of the same species; sexually distinct.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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dioecism in Science
Having male flowers on one plant and female flowers on another plant of the same species. The holly and asparagus plants are dioecious. Compare monoecious.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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