superfamily

noun

su·​per·​fam·​i·​ly ˈsü-pər-ˌfam-lē How to pronounce superfamily (audio)
-ˈfa-mə-
1
: a category of biological classification ranking below an order and above a family
2
: a large group of closely related molecules or chemical compounds usually possessing a similar function

Examples of superfamily 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.
Finding a new superfamily is an exceptionally rare event in taxonomy. — Hanna Wickes, Miami Herald, 26 Mar. 2026 Both species were placed in the same tardigrade superfamily Hypsibioidea, and was moved into the family Hypsibiidae. — Mindy Weisberger, Scientific American, 15 Aug. 2024 Wood’s fascination with pelican spiders (and the four other members of the superfamily Palpimanoidea) goes back 10 years. — Sean Greene, latimes.com, 26 Jan. 2018 Some researchers, including Pagel, believe that the world’s languages are united by even older superfamilies, but this view is hotly contested. — Elizabeth Norton, WIRED, 7 May 2013

Word History

First Known Use

1872, in the meaning defined at sense 1

Time Traveler
The first known use of superfamily was in 1872

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Cite this Entry

“Superfamily.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/superfamily. Accessed 26 Sep. 2026.

Medical Definition

superfamily

noun
plural superfamilies
1
: a category of taxonomic classification between a family and an order or a suborder
2
: a large group of closely related molecules or chemical compounds usually possessing a similar function
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