suborder Meaning, Definition & Usage

  1. noun (biology) taxonomic group that is a subdivision of an order

WordNet

Sub*or"der noun
Definitions
  1. (Nat. Hist.) A division of an order; a group of genera of a little lower rank than an order and of greater importance than a tribe or family; as, cichoraceous plants form a suborder of Compositæ.

Webster 1913