genus

[jee-nuhs]
noun, plural genera [jen-er-uh] , genuses.
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; < Latin: race, stock, kind, gender; cognate with Greek génos. See gens, gender1, kin

pseudogenus, noun, plural pseudogenera, pseudogenuses.

1. genius, genus ; 2. genus, species.
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et hoc genus omne

[et hohk ge-noos ohm-ne; English et hok jee-nuhs om-nee]
Latin.
and all this (or that) sort of thing.

et id genus omne

[et id ge-noos ohm-ne; English et id jee-nuhs om-nee]
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World English Dictionary
genus (ˈdʒiːnəs)
 
n , pl genera, 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
 
[C16: from Latin: race]

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Etymonline
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, © 2010 Douglas Harper
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American Heritage
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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American Heritage
Science Dictionary
genus   (jē'nəs)  Pronunciation Key 
Plural genera (jěn'ər-ə)
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
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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Example sentences
The breadth of the genus is stunning, he says.
Suggested penalty for anyone trafficking in the genus Phrynosoma (horned toads)
  will be 60 days in jail and a 200-dollar fine.
The wasp, in the genus Trissolcus, may be able to nip the stink bug explosion
  in the bud by preying on stink bug eggs.
This occurred in the origin of our genus Homo about 2.4 million years ago.
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