Bull"dog` (?), n. 1. Zool. A variety of dog, of remarkable ferocity, courage, and tenacity of grip; -- so named, probably, from being formerly employed in baiting bulls.
2. Metal. A refractory material used as a furnace lining, obtained by calcining the cinder or slag from the puddling furnace of a rolling mill.
© Webster 1913.
Bull"dog`, a. Characteristic of, or like, a bulldog; stubborn; as, bulldog courage; bulldog tenacity.
Bulldog bat zo'94l., a bat of the genus Nyctinomus; -- so called from the shape of its face.
© Webster 1913. |