species

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species

 [spe´shēz]
a taxonomic category subordinate to a genus (or subgenus) and superior to a subspecies or variety; composed of individuals similar in certain morphologic and physiologic characteristics.
type species the original species from which the description of the genus is formulated.

spe·cies

, pl.

spe·cies

(spē'shēz), Avoid the mispronunciation spē'sēz. The singular and plural forms of this word are both species. Specie is not the singular of species. A species name begins with a lowercase letter and is printed in italic type: [Branhamella] catarrhalis, [Pneumocystis] jiroveci. When a species is unknown or not identified, the abbreviation sp., in roman type, is used: Rhizpus sp. (one unidentified species of Rhizopus), Bacteroides spp. (more than one unidentified species). Avoid slang abridgments of species names such as "H. flu" (Haemophilus influenzae).
1. A biologic division between the genus and a variety or the individual; a group of organisms that generally bear a close resemblance to one another in the more essential features of their organization, and breed effectively producing fertile progeny.
2. A class of pharmaceutical preparations consisting of a mixture of dried plants, not pulverized, but in sufficiently fine division to be conveniently used in the making of extemporaneous decoctions or infusions, as a tea.
[L. appearance, form, kind, fr. specio, to look at]

species

/spe·cies/ (spe´shēz) a taxonomic category subordinate to a genus (or subgenus) and superior to a subspecies or variety.
type species  the original species from which the description of the genus is formulated.

species

(spē′shēz, -sēz)
n. pl. species
1. Biology A group of closely related organisms that are very similar to each other and are usually capable of interbreeding and producing fertile offspring. The species is the fundamental category of taxonomic classification, ranking below a genus or subgenus. Species names are represented in binomial nomenclature by an uncapitalized Latin adjective or noun following a capitalized genus name, as in Ananas comosus, the pineapple, and Equus caballus, the horse.
2. Chemistry A set of atoms, molecules, ions, or other chemical entities that possess the same distinct characteristics with respect to a chemical process or measurement.

species (Sp)

[spē′sēz, spē′shēz] pl. species (sp., spp.)
Etymology: L, form
the category of living things below genus in rank. A species is a genetically distinct group of demes that share a common gene pool and are reproductively isolated from all other such groups. See also deme, genus.

spe·cies

, pl. species (spē'shēz)
1. A biologic division between the genus and a variety or the individual; a group of organisms that generally bear a close resemblance to one another in the more essential features of their organization, and that breed effectively, producing fertile progeny.
2. A class of pharmaceutical preparations consisting of a mixture of dried plants, not pulverized, but in sufficiently fine division to be conveniently used in the making of extemporaneous decoctions or infusions, as a tea.
[L. appearance, form, kind, fr. specio, to look at]

species

the lowest (taxonomic) grouping of animals or plants which, at least potentially, forms an interbreeding array of populations unable to breed freely with other sorts of animal or plant. Thus members of a species have breeding compatibility and produce fertile offspring. The species is the only natural unit (taxon) of CLASSIFICATION. It is usually recognized on the basis of morphological characters (a MORPHOSPECIES), but different species can be morphologically identical (sibling species), for example, Drosophila pseudoobscura and D. persimilis exhibit behavioural differences leading to REPRODUCTIVE ISOLATION. see BINOMIAL NOMENCLATURE. For asexually reproducing organisms, such as bacteria, a precise definition of species has not been universally formulated and agreed. Generally individuals displaying a high degree of similarity based on biochemical, genetic and morphological characteristics, for example, are grouped as species.

species

a taxonomic category subordinate to a genus (or subgenus) and superior to a subspecies or variety; composed of individuals similar in certain morphological and physiological characteristics, the important one of which is that they are capable of interbreeding to produce fertile and viable offspring.

species difference
the difference between species in their response to therapeutic agents, poisons and infections due to physical, biochemical, immunological differences.
species specialist
a veterinarian who specializes in the diseases and management of an individual animal species.
type species
the original species from which the description of the genus is formulated.
References in periodicals archive ?
For example, a number of animal antibiotics are approved for use on several animal species.
The Multiple Species Conservation Program, which was adopted by the city in 1993, protects 1,500 plant and animal species, including 85 endangered species.
These conditions support an abundance of plant and animal species, including more than 80 that are rare or endangered.
Market orders for the regulation of pest animal species on wastewater and water production in the urban community of Lille.
Autier-Derian and team studied this phenomenon among domestic dogs, which have the largest morphological variety among all animal species.
Crossbreeding of animal species isn't unusual in itself, explains Zachariah Gompert of Texas State University in San Marcos.
A study of more than 1,700 plant and animal species showed that, on average, species are moving toward Earth's poles at a rate of 6.
Soaring condors, mountain-loving bighorn sheep and little toads that dig sand -- those are just some of the animal species in the Los Padres National Forest.
To the Editor: Anaplasma phagocytophilum (formerly Ehrlichia phagocytophila), a tick-transmitted pathogen that infects several animal species, including humans (involved as accidental "dead-end" hosts), is the causative agent of human granulocytic anaplasmosis (HGA).
But what if an animal species that has inhabited the area for centuries is also a threat?
Many issues of concern--loss of animal species, air and water pollution--have their origins in the loss of forest cover and the work those forests do to provide habitat and clean our air and water.