英语词汇“acorn worm”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

　

单词	acorn worm
释义	acorn worm acorn worm n. Any of a class (Enteropneusta) of hemichordate, wormlike animals that inhabit intertidal areas and soft marine sediments and have an acorn-shaped proboscis. acorn worm n (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) a′corn worm` n. any wormlike marine animal of the phylum Hemichordata, having gill slits and an acorn-shaped proboscis and collar. acorn worm acorn worm: see HemichordataHemichordata , small phylum of marine invertebrates closely related to both the echinoderms (phylum Echinodermata) and chordates (phylum Chordata). Acorn worms, class Enteropneusta, are the most common hemichordates. ..... Click the link for more information. . acorn worm [′ā‚kȯrn ‚wərm] (invertebrate zoology) Any member of the class Enteropneusta, free-living animals that usually burrow in sand or mud. Also known as tongue worm. acorn worm acorn worm a hemichordate, one of the three groups of invertebrate chordates collectively referred to as PROTOCHORDATES.
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