'chaetognathan' definitions:

Definition of 'chaetognathan'

(from WordNet)
adjective
Of or relating to arrowworms [syn: chaetognathan, chaetognathous]

Definition of 'chaetognathan'

From: GCIDE
  • chaetognathan \chaetognathan\ adj. of or pertaining to the Chaetognatha. [WordNet 1.5]