any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spines
a teleost fish with fins that are supported by sharp inflexible rays
having a spiny stem
of or relating to fish with spiny fins
having spiny leaves
having the back covered with spines
having a spiny border
having or covered with protective barbs or quills or spines or thorns or setae etc.