n 1  :  any of various relatively small elongated usu. naked and soft-bodied parasitic animals (as of the phylum Platyhelminthes)  2  :  HELMINTHIASIS - usu. used in pl. <a dog with s>  worm*like adj 
, vt :  to treat (an animal) with a drug to destroy or expel parasitic worms .
 
 
 
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