de·​cid·​u·​ous | \ di-ˈsi-jə-wəs How to pronounce deciduous (audio) , -jü-əs \

Definition of deciduous

1 biology : falling off or shed seasonally or at a certain stage of development in the life cycle deciduous leaves deciduous scales
2 biology
a : having deciduous parts maples, birches, and other deciduous trees deciduous dentition
b : having the dominant plants deciduous a deciduous forest
3 : ephemeral There is much that is deciduous in books …— J. R. Lowell

Other Words from deciduous

deciduousness noun

Examples of deciduous in a Sentence

the bare branches of a deciduous tree in winter he chose not to fret about the deciduous discomforts of his existence
Recent Examples on the Web Low humidity, high wind, increased temperatures, and less shade from deciduous trees all heightened fire risk. Kendra Pierre-louis, The Atlantic, 19 Sep. 2022 The 165-mile route offers endless opportunities to discover loops, vistas, and groves of deciduous trees above Lake Tahoe. Outside Online, 7 Sep. 2022 The Appalachian mountains are some of the oldest in the world, rich with deciduous hardwoods, medicinal plants, and edible delicacies like morels and ramps. Carter Sickels, Outside Online, 3 Sep. 2022 This deciduous native plant in the buckthorn family is a tenacious vine that forms an extremely strong stem. Janet Carson, Arkansas Online, 28 Aug. 2022 The caraibeira tree, Tabebuia aurea, is a relatively small seasonally deciduous tree that is critically important to Spix’s little blue macaws. Grrlscientist, Forbes, 15 June 2022 According to Conway-Anderson, silvopasturing where pastures are interspersed with deciduous trees and pine stands offers benefits on both sides of the climate equation. Daniel Cusick, Scientific American, 24 Aug. 2022 Herbaceous peonies die back to the ground each winter; tree peonies are permanent, deciduous shrubs that grow to a height 6 feet. Sunset Magazine, 13 July 2022 Good time to plant fruit trees and deciduous shrubs. oregonlive, 1 Feb. 2022 See More

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

First Known Use of deciduous

1657, in the meaning defined at sense 1

History and Etymology for deciduous

Latin deciduus, from decidere to fall off, from de- + cadere to fall — more at chance

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Time Traveler for deciduous

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The first known use of deciduous was in 1657

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Dictionary Entries Near deciduous



deciduous cypress

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Last Updated

23 Sep 2022

Cite this Entry

“Deciduous.” Dictionary, Merriam-Webster, Accessed 1 Oct. 2022.

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More Definitions for deciduous


de·​cid·​u·​ous | \ di-ˈsi-jə-wəs How to pronounce deciduous (audio) \

Kids Definition of deciduous

: made up of or having a part that falls off at the end of a period of growth and use deciduous trees


de·​cid·​u·​ous | \ di-ˈsij-ə-wəs How to pronounce deciduous (audio) \

Medical Definition of deciduous

1 : falling off or shed at a certain stage in the life cycle
2 : having deciduous parts a deciduous dentition

More from Merriam-Webster on deciduous

Nglish: Translation of deciduous for Spanish Speakers


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