Akademik

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

: a worm of the class Chaetognatha — see sagitta

/ar"oh werrm'/, n.

any small, translucent marine worm of the phylum (or class) Chaetognatha, having lateral and caudal fins.

Also called glassworm.

[1885-90; so called from a fancied resemblance to an arrow]

arrˈowworm noun

Any of various small wormlike marine animals of the phylum Chaetognatha with an arrow-shaped, finned transparent body

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