arrow worm

See also: arrowworm

English

Etymology

From arrow +‎ worm.

Noun

arrow worm (plural arrow worms)

  1. A predatory marine worm of the phylum Chaetognatha. [from 19th c.]
    • 2017, Danna Staaf, Squid Empire, ForeEdge, →ISBN, page 32:
      Arrow worms and their ilk may even have driven much of the early Cambrian diversification, as animals tried every trick to avoid getting eaten.

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