acorn worm

acorn worm
noun Date: circa 1889 any of a class (Enteropneusta) of burrowing wormlike marine animals having an acorn-shaped proboscis and classified with the hemichordates

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Acorn worm — Taxobox name = Enteropneusta regnum = Animalia phylum = Hemichordata classis = Enteropneusta subdivision ranks = Families subdivision = Harrimaniidae Protoglossidae Ptychoderidae Saxipendiidae Spengelidae Torquaratoridae The Acorn worms or… …   Wikipedia

  • acorn worm — any of several burrowing, often brilliantly colored hemichordates of the class Enteropneusta, usually found in intertidal sand and mud, having an acorn shaped proboscis and collar. Also, acornworm. [1885 90] * * * ▪ hemichordate also called… …   Universalium

  • acorn worm — a′corn worm n. ivt any wormlike marine animal of the phylum Hemichordata, having gill slits and an acorn shaped proboscis and collar …   From formal English to slang

  • acorn worm — noun a burrowing worm like marine animal with a proboscis, a collar, and a long trunk with gill slits. [Class Enteropneusta.] …   English new terms dictionary

  • acorn worm — noun Etymology: so called from the shape of the front part of the body : a worm of the group Enteropneusta …   Useful english dictionary

  • Worm cast — A worm cast or vermicast [ KITSAP E Z Earth] ] is a structure created by worms, typically on soils such as those on beaches, [ beachlife.html BBC Beach Life] ]… …   Wikipedia

  • acorn — n. the fruit of the oak, with a smooth nut in a rough cuplike base. Phrases and idioms: acorn barnacle a multivalve marine cirriped, Balanus balanoides, living on rocks. acorn worm any marine wormlike animal of the phylum Hemichordata, having a… …   Useful english dictionary

  • Worm — A worm is a common name given to a diverse group of invertebrate animals that have a long, soft body and no legs. There are hundreds of thousands of species of worms, 2,700 of these are earthworms. Animals which are commonly called worms include… …   Wikipedia

  • acornworm — 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. * * * …   Universalium

  • hemichordate — /hem i kawr dayt/, Zool. adj. 1. belonging or pertaining to the chordates of the phylum Hemichordata, comprising small, widely distributed, marine animals, as the acorn worms. n. 2. a hemichordate animal, having a vertebratelike hollow nerve cord …   Universalium

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