detritus

noun

de·​tri·​tus di-ˈtrī-təs How to pronounce detritus (audio)
plural detritus di-ˈtrī-təs How to pronounce detritus (audio)
-ˈtrī-ˌtüs
1
geology : loose material (such as rock fragments or organic particles) that results directly from disintegration
2
a
: a product of disintegration, destruction, or wearing away : debris
b
: miscellaneous remnants : odds and ends
still picking up detritus from the block party
… sifting through the detritus of his childhood …Michael Tomasky
detrital adjective

Did you know?

If you use detritus in speech, remember to stress the second syllable, as you do in the words arthritis and bronchitis. Once you've mastered its meaning and pronunciation, you’ll find that detritus is a term—originally a geology term referring to loose material, such as broken rock fragments, resulting from disintegration—that can be applied in many situations. After the first hard freeze of fall, gardens are littered with the detritus of summer’s plants and produce: stalks, leaves, vines, and maybe even an abandoned hand trowel. As a flood-swollen river retreats to its banks, it leaves detritus—debris gathered by the raging waters—in its wake. The detritus of civilization may include junkyards and abandoned buildings, while mental detritus may include all kinds of useless trivia. (We’re not saying it qualifies as such, but detritus comes from the Latin root deterere, meaning “to wear away, impair.”)

Did you know?

How Do You Pronounce detritus?

After the first hard freeze of fall, gardens are sadly littered with the detritus of the summer's plants and produce: stalks, leaves, vines, rotted vegetables, and maybe even a hand trowel left behind. As the flooding Mississippi River retreats back to its ordinary course, it leaves detritus behind in its wake, debris gathered from everywhere by the raging waters. The detritus of civilization may include junkyards and abandoned buildings; mental detritus may include all kinds of useless trivia. Notice how this word is pronounced; for some reason, people often try to accent the first syllable rather than the second.

Examples of detritus in a Sentence

the detritus of ancient civilizations As he packed, he sifted through the detritus of a failed relationship.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The mood is a mix of ironic and sincere in equal measure, with plenty of pastiche and a heavy appreciation for the profundity of cultural detritus. Savannah Sobrevilla, New York Times, 7 Apr. 2025 Previous scientific research shows that the detritus left behind after a fire can be laden with toxic compounds and gases, from heavy metals to burned plastics to asbestos. Alejandra Borunda, NPR, 19 Jan. 2025 The debates over detritus eventually spilled into academia. Jennifer Wilson, The New Yorker, 16 Dec. 2024 Artifacts had to be carefully parsed from the detritus of war. Eli Wizevich, Smithsonian Magazine, 12 Feb. 2025 See All Example Sentences for detritus

Word History

Etymology

borrowed from French détritus, borrowed from Latin dētrītus, past participle of dēterere "to wear away, impair," from dē- de- + terere "to rub, grind, wear down" — more at trite

First Known Use

1802, in the meaning defined at sense 1

Time Traveler
The first known use of detritus was in 1802

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Cite this Entry

“Detritus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/detritus. Accessed 13 Apr. 2025.

Kids Definition

detritus

noun
de·​tri·​tus di-ˈtrīt-əs How to pronounce detritus (audio)
plural detritus
-ˈtrīt-əs,
-ˈtrī-tüs
1
: loose material that results directly from the natural breaking up of rocks
2
: a product of disintegration or wearing away

Medical Definition

detritus

noun
de·​tri·​tus di-ˈtrīt-əs How to pronounce detritus (audio)
: loose material resulting from disintegration (as of tissue)

More from Merriam-Webster on detritus

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