/bool"hed'/ , n.
1. any of several North American, freshwater catfishes of the genus Ictalurus, having a rounded or truncate caudal fin.
2. any of several other fishes, as the freshwater sculpins of the genus Cottus, esp. those species having a hornlike spine on each side of the head.
3. an obstinate or stupid person.
[ 1665-75, Amer.; BULL 1 + HEAD ]