Protostomian

adj, noun

adj, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A protostome
Adjective
  1. 1
    Of or pertaining to the protostomes not-comparable

Etymology

From protostome + -ian.

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