1 genus | Definition of genus

genus

noun
ge·​nus | \ ˈjÄ“-nÉ™s How to pronounce genus (audio) , ˈje- How to pronounce genus (audio) \
plural genera\ ˈje-​nÉ™-​rÉ™ How to pronounce genera (audio) \ also genuses

Definition of genus

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

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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

Jan Zalasiewicz, a University of Leicester paleobiologist not involved in the study, writes for The Conversation that the species of tree, part of the new genus Guangdedendron, had no flowers or seeds. Jason Daley, Smithsonian, "Fossil Trees Reveal the Oldest Known Forest in Asia," 9 Aug. 2019 Daniel Moerman’s 1998 book Native American Ethnobotany cites the chestnut, part of the same genus, as a treatment for whooping cough. Robert Langellier, National Geographic, "A legendary Ozark chestnut tree, thought extinct, is rediscovered," 24 June 2019 Pumpkins and squash are members of the same genus and the USDA allows canners to mix them to obtain a more crowd-pleasing consistency (field pumpkins can be stringy). Catherine Lo, Good Housekeeping, "Canned Pumpkin vs Pie Filling: What's the Difference?," 20 June 2019 Each envelope had the name of a cactus genus written on the front. Zoë Schlanger, Quartz, "A German tourist faces 10 years in US prison for smuggling endangered cactus seeds," 3 July 2019 Frankincense is made from the milky sap of trees in the Boswelia genus, found mainly in wild trees in Africa and India. Alex Fox, Science | AAAS, "World’s supply of frankincense could go up in smoke," 1 July 2019 While both marijuana and hemp are in the cannabis genus, hemp only has trace amounts of THC, the psychoactive compound that makes people high. John Maccormack, ExpressNews.com, "Hemp rush begins on West Texas farms," 29 June 2019 For the past seven years, Bone has curated the steppe collection, which includes the genus sedums. Colleen Smith, The Denver Post, "The perfect plant that’s easy enough for beginner gardeners but also interesting enough for experts," 17 June 2019 All names have to have a combination of a genus name, which comes first, and a species name. Lauren M. Johnson, CNN, "New species of bee fly named after 'Game of Thrones' character," 1 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'genus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of genus

1551, in the meaning defined at sense 1

History and Etymology for genus

Latin gener-, genus birth, race, kind — more at kin

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More Definitions for genus

genus

noun

English Language Learners Definition of genus

biology : a group of related animals or plants that includes several or many different species

genus

noun
ge·​nus | \ ˈjÄ“-nÉ™s How to pronounce genus (audio) \
plural genera\ ˈje-​nÉ™-​rÉ™ \

Kids Definition of genus

: a group of related living things (as plants or animals) that ranks below the family in scientific classification and is made up of one or more species

genus

noun
ge·​nus | \ ˈjÄ“-nÉ™s How to pronounce genus (audio) , ˈjen-É™s How to pronounce genus (audio) \
plural genera\ ˈjen-​É™-​rÉ™ How to pronounce genera (audio) \

Medical Definition of genus

: 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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More from Merriam-Webster on genus

Rhyming Dictionary: Words that rhyme with genus

Thesaurus: All synonyms and antonyms for genus

Spanish Central: Translation of genus

Nglish: Translation of genus for Spanish Speakers

Britannica English: Translation of genus for Arabic Speakers

Britannica.com: Encyclopedia article about genus