subspecies

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun (biology) a taxonomic group that is a division of a species; usually arises as a consequence of geographical isolation within a species

From sub- + species.

Hence every genus must contain different species, and these again different subspecies; and as each of the latter must itself contain a sphere (must be of a certain extent, as a conceptus communis), reason demands that no species or sub-species is to be considered as the lowest possible. — The Critique of Pure Reason, Immanuel Kant
As all triangles agree in certain properties, though widely different in others, so all Indians are alike in certain characteristics, though differing, almost radically, each from every other: But, as the points of coincidence in triangles are those which determine the class, and the differences only indicate subspecies, so the similar characteristics in the Indian, are those which distinguish the species, and the variations of character are, at most, only tribal limits. — Western Characters; or, Types of Border Life in the Western States, John Ludlum McConnel

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