• synonyms


[jee-nuh s]
See more synonyms for genus on Thesaurus.com
noun, plural gen·e·ra [jen-er-uh] /ˈdʒɛn ər ə/, ge·nus·es.
  1. Biology. the usual major subdivision of a family or subfamily in the classification of organisms, usually consisting of more than one species.
  2. Logic. a class or group of individuals, or of species of individuals.
  3. a kind; sort; class.
Show More

Origin of genus

1545–55; < Latin: race, stock, kind, gender; cognate with Greek génos. See gens, gender1, kin
Related formspseu·do·ge·nus, noun, plural pseu·do·gen·e·ra, pseu·do·ge·nus·es.
Can be confusedgenius genusgenus species

et hoc genus omne

[et hohk ge-noo s ohm-ne; English et hok jee-nuh s om-nee]
  1. and all this (or that) sort of thing.
Show More
Also et id genus omne [et id ge-noo s ohm-ne; English et id jee-nuh s om-nee] /ɛt ˈɪd ˈgɛ nʊs ˈoʊm nɛ; English ɛt ˈɪd ˈdʒi nəs ˈɒm ni/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for genus

sort, division, kind, compartment, group, variety, brand, breed, style, department, section, genre, subdivision, model, category, class, make, subfamily

Examples from the Web for genus

Contemporary Examples of genus

Historical Examples of genus

British Dictionary definitions for genus


noun plural genera (ˈdʒɛnərə) or genuses
  1. biology any of the taxonomic groups into which a family is divided and which contains one or more species. For example, Vulpes (foxes) is a genus of the dog family (Canidae)
  2. logic a class of objects or individuals that can be divided into two or more groups or species
  3. a class, group, etc, with common characteristics
  4. maths a number characterizing a closed surface in topology equal to the number of handles added to a sphere to form the surface. A sphere has genus 0, a torus, genus 1, etc
Show More

Word Origin for genus

C16: from Latin: race
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for genus


(plural genera), 1550s as a term of logic, "kind or class of things" (biological sense dates from c.1600), from Latin genus (genitive generis) "race, stock, kind; family, birth, descent, origin," cognate with Greek genos "race, kind," and gonos "birth, offspring, stock," from PIE root *gen(e)- "produce, beget, be born" (cf. Sanskrit janati "begets, bears," janah "race," janman- "birth, origin," jatah "born;" Avestan zizanenti "they bear;" Greek gignesthai "to become, happen;" Latin gignere "to beget," gnasci "to be born," genius "procreative divinity, inborn tutelary spirit, innate quality," ingenium "inborn character," germen "shoot, bud, embryo, germ;" Lithuanian gentis "kinsmen;" Gothic kuni "race;" Old English cennan "beget, create;" Old High German kind "child;" Old Irish ro-genar "I was born;" Welsh geni "to be born;" Armenian chanim "I bear, I am born").

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

genus in Medicine


n. pl. gen•er•a (jĕnər-ə)
  1. A taxonomic category ranking below a family and above a species and generally consisting of a group of species exhibiting similar characteristics.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

genus in Science


Plural genera (jĕnər-ə)
  1. A group of organisms ranking above a species and below a family. The names of genera, like those of species, are written in italics. For example, Periplaneta is the genus of the American cockroach, and comes from the Greek for “wandering about.” See Table at taxonomy.
Show More
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

genus in Culture



In biology, the classification lower than a family and higher than a species. Wolves belong to the same genus as dogs. Foxes belong to a different genus from that of dogs and wolves, but to the same family. (See Linnean classification.)

Show More
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.