Species, kind (of animate beings). Obsolete.

Zoology and Botany. A group or class of animals or plants (usually constituting a subdivision of a genus) having certain common and permanent…

A subdivision of a species; a subcategory; Biology a taxonomic category ranking below species and above variety; a group of this rank.

A subdivision of a species, esp. one regarded as having more individuality than does a subspecies; spec. each of two or more biological subspecies…

The lowest species of a classification or division; concrete, an ‘infimous’ person (? obsolete).

In plural. Fellow species of a genus.

a group of plants or animals in the process of becoming sufficiently distinct to be described as a full species.

Biology. = relict, n. 3e.

a species as defined by biological relationships between its members, rather than by morphological or other features thought to be distinctive of it…

Biology. More fully biological race, physiological race. A population within a species that is morphologically indistinguishable from other…

Taxonomy. Chiefly Botany. A genetically distinct group of organisms within a species.

Ecology. A very localized group of plants most of which belong to a single species.

= microspecies, n.

two species which are morphologically identical but which are separated by reproductive isolation; cf. sibling species n. at sibling, n. compounds 2.

= superspecies, n. 1 Now rare.

each of a pair or group of species (esp. those that are closely related to one another) whose members are morphologically very similar but cannot…

a pair of species which are similar, sympatric, and closely related, but distinct.

A group of organisms which is recognized simply on the basis of similarity of characteristics, regardless of any biological interaction or genetic…

= biological species n. at biological, adj. n.compounds.

A species which exhibits a complex pattern of variation among its members but is not separable into distinct subspecific groups.