species (redirected from spp.))

species /spe·cies/ (spe´shēz) a taxonomic category subordinate to a genus (or subgenus) and superior to a subspecies or variety.

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type species  the original species from which the description of the genus is formulated.

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spe·cies (spshz, -sz)

n. pl. species

1. A fundamental category of taxonomic classification, ranking below a genus or subgenus and consisting of related organisms capable of interbreeding.

2. An organism belonging to such a category, represented in binomial nomenclature by an uncapitalized Latin adjective or noun following a capitalized genus name, as in the bacterium Escherichia coli.

3. A class of pharmaceutical preparations consisting of a mixture of dried plants in sufficiently fine division to be used in making boiled extracts or infusions.

4. A specific type of atomic nucleus, atom, ion, or molecule.

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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.

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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.

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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.