Subphylum

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A taxonomic category below phylum and above class
  2. 2
    (biology) a taxonomic group ranking between a phylum and a class wordnet

Etymology

From sub- + phylum.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.