di·​oe·​cious | \ (ˌ)dī-ˈē-shəs How to pronounce dioecious (audio) \

Definition of dioecious

1 : having male reproductive organs in one individual and female in another
2 : having staminate and pistillate flowers borne on different individuals

Other Words from dioecious

dioecism \ (ˌ)dī-​ˈē-​ˌsi-​zəm How to pronounce dioecious (audio) \ noun
dioecy \ ˈdī-​ˌē-​sē How to pronounce dioecious (audio) \ noun

Examples of dioecious in a Sentence

Recent Examples on the Web Date palms are dioecious, meaning that trees are either male or female — females are treated with pollen from the male plants. Christian Reynoso, Los Angeles Times, 7 Oct. 2021 The ginkgo tree is dioecious, meaning there are separate male and female trees. Beth Botts, chicagotribune.com, 27 Sep. 2020 Hollies are dioecious, Lorimer added, meaning there are separate male and female plants. BostonGlobe.com, 5 Dec. 2019 Ryan Nelson of Western Springs misspelled dioecious in the second round. Chuck Fieldman, chicagotribune.com, 31 May 2018 Willows are dioecious; that is, male trees produce only male flowers, and female trees produce only female flowers. Dave Taft, New York Times, 4 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dioecious.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of dioecious

1752, in the meaning defined at sense 1

History and Etymology for dioecious

New Latin Dioecia, class name (from Greek di- di- + oîkos "house, home" + New Latin -ia -ia entry 1) + -ous — more at vicinity

Note: The class name Dioecia was introduced by linnaeus in his Systema naturae (Leiden, 1735).

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The first known use of dioecious was in 1752

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Last Updated

23 Aug 2022

Cite this Entry

“Dioecious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dioecious. Accessed 25 Sep. 2022.

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