Noun: spiny-headed worm
- Any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spines
"The spiny-headed worm's hooked proboscis allowed it to attach firmly to the host's intestinal wall";
- acanthocephalan
Derived forms: spiny-headed worms
Type of: worm
Part of: Acanthocephala, phylum Acanthocephala
Encyclopedia: Spiny-headed worm