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acorn worm
(redirected from Enterepneusta)

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
acorn worm
n.
Any of a class (Enteropneusta) of hemichordate, wormlike animals that inhabit shallow burrows in mud or sand flats of intertidal zones and are equipped with an acornlike proboscis used for digging and collecting food.

acorn worm
n
(Life Sciences & Allied Applications / Animals) any of various small burrowing marine animals of the genus Balanoglossus and related genera, having an elongated wormlike body with an acorn-shaped eversible proboscis at the head end: subphylum Hemichordata (hemichordates)


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