genus

noun

ge·​nus ˈjē-nəs How to pronounce genus (audio) ˈje- How to pronounce genus (audio)
plural genera ˈje-nə-rə How to pronounce genus (audio) also genuses
1
: a class, kind, or group marked by common characteristics or by one common characteristic
specifically : a category of biological classification ranking between the family and the species, comprising structurally or phylogenetically (see phylogenetic sense 2) related species or an isolated species exhibiting unusual differentiation, and being designated by a Latin or latinized capitalized singular noun
2
: a class of objects divided into several subordinate species

Examples of genus in a Sentence

the crime novel, written from the criminal's perspective, is sometimes seen as a particular species of the detective story genus
Recent Examples on the Web The butterfly, named Metron mentor as an anagram for the genus and species, has a fuzzy brown body with white, uneven splotches across its wings. Irene Wright, Miami Herald, 16 May 2024 The deer genus, Santuccimeryx, was named to honor the work of Vincent L. Santucci, the Senior Paleontologist and Paleontology Program Coordinator in the Geologic Resources Division of the National Park Service. James Powel, USA TODAY, 10 May 2024 The new genus of deer has teeth very similar to Leptomeryx and a skull resembling that of the Pseudoparablastomeryx, officials said. Jon Haworth, ABC News, 9 May 2024 Bush Anemone Companion Plants Manzanita Manzanita is a genus of evergreen shrubs or trees native to California, the North Coast Range, and the Sierra Nevada mountains. Viveka Neveln, Better Homes & Gardens, 8 May 2024 Telling Cicada Species Apart All seven species of periodical cicadas fall under the genus Magicicada. Lily Carey, Discover Magazine, 6 May 2024 As similar fossils turned up, Mosasaurus turned out to be just the first genus of a whole group of marine reptiles—the mosasaurs. Riley Black, Smithsonian Magazine, 2 May 2024 Another member of the genus was found to have venom containing 194 identifiable toxins, according to an April study published in the International Journal of Biological Macromolecules. Brendan Rascius, Miami Herald, 2 May 2024 The giant kangaroos are from the genus Protemnodon, and would have demonstrated more variability in shape, range and hopping method than researchers previously thought, according to a statement from Flinders University in South Australia. Jack Guy, CNN, 15 Apr. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'genus.' 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 gener-, genus birth, race, kind — more at kin

First Known Use

1551, in the meaning defined at sense 1

Time Traveler
The first known use of genus was in 1551

Dictionary Entries Near genus

Cite this Entry

“Genus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/genus. Accessed 20 May. 2024.

Kids Definition

genus

noun
ge·​nus ˈjē-nəs How to pronounce genus (audio)
plural genera ˈjen-ə-rə How to pronounce genus (audio)
: a category of classification in biology that ranks between the family and the species, contains related species, and is named by a capitalized noun formed in Latin

Medical Definition

genus

noun
plural genera ˈjen-ə-rə How to pronounce genus (audio)
: a class, kind, or group marked by common characteristics or by one common characteristic
specifically : a category of biological classification ranking between the family and the species, comprising structurally or phylogenetically related species or an isolated species exhibiting unusual differentiation, and designated by a Latin or latinized capitalized singular noun

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