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Definition of Arrowworm
1. Noun. Any worm of the Chaetognatha; transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth.
Exact synonyms: Chaetognath
Generic synonyms: Worm
Group relationships: Chaetognatha, Phylum Chaetognatha
Specialized synonyms: Sagitta
Generic synonyms: Worm
Group relationships: Chaetognatha, Phylum Chaetognatha
Specialized synonyms: Sagitta
Definition of Arrowworm
1. n. A peculiar transparent worm of the genus Sagitta, living at the surface of the sea. See Sagitta.
Definition of Arrowworm
1. Noun. (zoology) A transparent marine worm of the phylum ''Chaetognatha'', found in plankton. ¹
¹ Source: wiktionary.com
Definition of Arrowworm
1. [n -S]
Medical Definition of Arrowworm
1.