Definition of arrow worm in English:

arrow worm

Line breaks: arrow worm

noun

A slender transparent worm-like animal with fins, having spines on the head for grasping prey. It is common in marine plankton. Also called chaetognath.
  • Phylum Chaetognatha
More example sentences
  • Chaetognaths (commonly named arrow worms) are transparent marine metazoans, ranging in size from 2 to 120 mm.
  • As mentioned, the chaetognaths (‘arrow worms’) are clearly orthodox bilaterians.
  • Early Cambrian ‘protoconodonts’ are currently believed to be the unrelated remains of chaetognaths (or ‘arrow worms’).

Definition of arrow worm in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day vituperate
Pronunciation: vɪˈtjuːpəreɪt
verb
blame or insult (someone) in strong language...