genus


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genus

 [je´nus] (pl. gen´era) (L.)
a taxonomic category (taxon) subordinate to a tribe (or subtribe) and superior to a species (or subgenus).

ge·nus

, pl.

gen·er·a

(jēnŭs, jen'ĕr-ă), A genus name begins with a capital letter and is printed in italic type: Escherichia, Helicobacter, Staphylococcus. In this form it is never pluralized. When used as a common noun, a genus name begins with a lowercase letter, is not italicized, and may form a plural: chlamydia, staphylococci. A genus name may be abbreviated with or without a period (E. coli, H. pylori, S aureus) only when the meaning is clear from the context.
In natural history classification, the taxonomic level of division between the family, or tribe, and the species; a group of species alike in the broad features of their organization but different in detail, and incapable of fertile mating.
[L. birth, descent]

genus

/ge·nus/ (je´nus) pl. gen´era   [L.] a taxonomic category subordinate to a tribe (or subtribe) and superior to a species (or subgenus).

genus

(jē′nəs)
n. pl. genera (jĕn′ər-ə)
1. Biology A taxonomic category ranking below a family and above a species and designating a group of species that are presumed to be closely related and usually exhibit similar characteristics. In a scientific name, the genus name is capitalized and italicized, for example,Ovis for sheep and related animals.
2. Logic A class of objects divided into subordinate species having certain common attributes.
3. A class, group, or kind with common attributes.

genus

[jē′nəs] pl. genera
Etymology: L, kind
a subdivision of a family of organisms. A genus usually is composed of several closely related species. The genus Homo has only one species, Homo sapiens (humans). See also family.

genus

Taxonomy A taxonomic grouping of one or several species which is subordinate to a family, tribe or subtribe and superior to a species. Cf Family, Species, Trait, Tribe.

ge·nus

, pl. genera (jē'nŭs, jen'ĕr-ă)
In natural history classification, the taxonomic level of division between the family, or tribe, and the species; a group of species alike in the broad features of their organization but different in detail, and incapable of fertile mating.
[L. birth, descent]

genus

The taxonomic category above species and below family. The generic name, in the Linnaean classification, is always written with a capital letter, the specific name in lower case. Thus, in Homo sapiens , Homo is the genus and sapiens the specific name.

genus

a TAXON immediately above that of a SPECIES and containing usually a group of closely related species. The name of a genus (generic name) is written or printed with an initial capital letter and in BINOMIAL NOMENCLATURE precedes the specific name, which invariably has a small initial letter.

genus,

n in biology, a group of related species. In the binomial system of nomenclature, the genus is listed first.

genus

pl. genera [L.] a taxonomic category (taxon) subordinate to a tribe (or subtribe) and superior to a species (or subgenus).
References in classic literature ?
The webs were placed vertically, as is invariably the case with the genus Epeira: they were separated from each other by a space of about two feet, but were all attached to certain common lines, which were of great length, and extended to all parts of the community.
175), mentioning a hymenopterous insect, probably of the same genus, says he saw it dragging a dead spider through tall grass, in a straight line to its nest, which was one hundred and sixty-three paces distant.
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This month, though, Brigham Young scientists unearthed a 4-foot-long neck vertebra that they think might finally settle the genus question.
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Most volunteers in both cultures showed a preference for combining animals into groups related at the genus level.
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He knows of 15 members of the genus Penstemon that rely on hummingbirds and may have evolved this reliance independently of one another.
Frailey and Campbell note that even larger members of the Purussaurus genus must have existed, because a museum in Brazil has a jawbone 30 centimeters longer than the one they found.
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