deciduous

adjective

de·​cid·​u·​ous di-ˈsi-jə-wəs How to pronounce deciduous (audio)
-jü-əs
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
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 Feed stone fruits, apples and other deciduous fruit trees with organic fruit tree fertilizer. Nan Sterman, San Diego Union-Tribune, 6 Apr. 2024 Temperate deciduous trees have begun invading the understory of conifers in the Northwoods because the warming climate has begun favoring them. Smithsonian Magazine, 15 Mar. 2024 Prune deciduous fruit trees to stimulate fruit production. Nan Sterman, San Diego Union-Tribune, 6 Jan. 2024 The Congaree and Wateree Rivers flow through the park, helping to sustain one of the highest deciduous tree canopies in the world. Josh Laskin, Travel + Leisure, 1 Sep. 2023 So does fall, when the deciduous splendor of the park unveils in washes of gold, red, and umber. Tracey Minkin, Southern Living, 12 July 2023 My Japanese maples are unfurling, and leaves are appearing on most of my deciduous shrubs. Janet B. Carson, arkansasonline.com, 4 Mar. 2024 Once new leaves and flowers emerge on deciduous fruit tree branches, feed them with fruit tree fertilizer. Nan Sterman, San Diego Union-Tribune, 3 Feb. 2024 Priority watering starts with the most expensive and not easily replaced plants in any landscape: trees (both deciduous and evergreen). Betty Cahill, The Denver Post, 29 Jan. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'deciduous.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

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

First Known Use

1657, in the meaning defined at sense 1

Time Traveler
The first known use of deciduous was in 1657

Dictionary Entries Near deciduous

Cite this Entry

“Deciduous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deciduous. Accessed 18 Apr. 2024.

Kids Definition

deciduous

adjective
de·​cid·​u·​ous di-ˈsij-ə-wəs How to pronounce deciduous (audio)
1
: falling off (as at the end of a growing period or stage of development)
antlers are deciduous
deciduous leaves
2
: having deciduous parts or members with deciduous parts
deciduous trees
a deciduous forest

Medical Definition

deciduous

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

Last Updated: - Updated example sentences
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