clade

noun

: a group of biological taxa (such as species) that includes all descendants of one common ancestor

Examples of clade in a Sentence

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.
Researchers began to detect a few sporadic cases of clade Ia, the longtime variant in endemic regions, in August 2023. Byjon Cohen, science.org, 9 Dec. 2024 No cases from clade I — the strain at the root of the latest outbreak — have been reported outside of central or eastern Africa, the CDC said last week. Maia Pandey, Journal Sentinel, 15 Aug. 2024 There are a few cases of clade II mpox reported in the U.S. each week. Jordan Green, The Tennessean, 19 Aug. 2024 Until this point, the outbreak of H5N1 in dairy cows—which was declared in March 2024—was entirely caused by H5N1 clade 2.3.4.4b, genotype B3.13. Ars Technica, 11 Feb. 2025 See All Example Sentences for clade

Word History

Etymology

borrowed from Greek kládos "branch, sprig, frond," after cladogenesis — more at clado-

Note: The term was introduced by Julian huxley in "The Three Types of Evolutionary Process," Nature, vol. 180, no. 4584 (September 7, 1957), p. 455.

First Known Use

1911, in the meaning defined above

Time Traveler
The first known use of clade was in 1911

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Cite this Entry

“Clade.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/clade. Accessed 23 Mar. 2025.

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