noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An octapeptide present in the frog Xenopus laevis uncountable
2. 2
   A group of opsins, which are confined to molluscs, rotifers, brachiopods, and cnidarians countable

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