subclass

sub·class  (sbkls)

n.

1. A subdivision of a set or class.

2. Biology A taxonomic category of related organisms ranking between a class and an order.

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subclass  (sbkls)

A taxonomic category of related organisms ranking below a class and containing one or more orders.

Thesaurus

Noun

1.

subclass - (biology) a taxonomic category below a class and above an order biological science, biology - the science that studies living organisms taxon, taxonomic category, taxonomic group - animal or plant group having natural relations