spiny-headed worm(redirected from spiny-headed worms)
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Any of various worms of the phylum Acanthocephala that live parasitically in the intestines of vertebrates and are characterized by a cylindrical, retractile proboscis that bears many rows of hooked spines. Also called acanthocephalan, thorny-headed worm.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
any of a small group of intestinal parasites of the phylum Acanthocephala, having a proboscis covered with hooks used for attachment.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||spiny-headed worm - any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spines|
worm - any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes; also many insect larvae
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