单词 | spiny-headed worm |
释义 | spin·y-head·ed worm ![]() n. 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. |
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