adj, noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any of the primitive fishlike creatures, of the subphylum Cephalochordata, including the lancelets, that lack a true spine but have a notochord which, in the case of cephalochordates, reaches into the head, contrary to the Urochordata
2. 2
   fish-like animals having a notochord rather than a true spinal column wordnet

Adjective

1. 1
   Of or pertaining to these creatures. not-comparable

Etymology

From translingual Cephalochordata, by surface analysis, cephalo- + chordate.

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