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Genus

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ge⋅nus

[jee-nuhs]
–noun, plural gen⋅e⋅ra [jen-er-uh] , 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.

Origin:
1545–55; < L: race, stock, kind, gender; c. Gk génos. See gens, gender 1 , kin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ge·nus   (jē'nəs)   
n.   pl. gen·er·a (jěn'ər-ə)
  1. Biology A taxonomic category ranking below a family and above a species and generally consisting of a group of species exhibiting similar characteristics. In taxonomic nomenclature the genus name is used, either alone or followed by a Latin adjective or epithet, to form the name of a species. See Table at taxonomy.

  2. Logic A class of objects divided into subordinate species having certain common attributes.

  3. A class, group, or kind with common attributes.


[Latin, kind; see genə- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Cultural Dictionary

genus [(jee-nuhs)]

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.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

genus 
(pl. genera), 1551 as a term of logic (biological sense dates from 1608), from L. genus (gen. generis) "race, stock, kind," cognate with Gk. genos "race, kind," and gonos "birth, offspring, stock," from PIE base *gen-/*gon-/*gn- "produce, beget, be born" (cf. Skt. janati "begets, bears," janah "race," jatah "born;" Avestan zizanenti "they bear;" Gk. gignesthai "to become, happen;" L. gignere "to beget," gnasci "to be born," genius "procreative divinity, inborn tutelary spirit, innate quality," ingenium "inborn character," germen "shoot, bud, embryo, germ;" Lith. gentis "kinsmen;" Goth. kuni "race;" O.E. cennan "beget, create;" O.H.G. kind "child;" O.Ir. ro-genar "I was born;" Welsh geni "to be born").
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: ge·nus
Pronunciation: 'jE-n&s, 'jen-&s
Function: noun
Inflected Form: plural gen·era /'jen-&-r&/
: a class, kind, or group marked by common characteristics or by one common characteristic; specifically : a category of biological classification ranking between thefamily and the species, comprising structurally or phylogenetically related species or an isolated species exhibiting unusual differentiation, and being designated by a Latin or latinized capitalizedsingular noun
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

genus ge·nus (jē'nəs)
n. pl. gen·er·a (jěn'ər-ə)
A taxonomic category ranking below a family and above a species and generally consisting of a group of species exhibiting similar characteristics.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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