Found 2 items, similar to mastiffs.
English → English (WordNet) Definition: mastiff mastiff n : an old breed of powerful deep-chested smooth-coated dog used chiefly as a watchdog and guard dog
English → English (gcide) Definition: Mastiffs Mastiff \Mas"tiff\, n.; pl. Mastiffs. [Mastives is irregular and unusual.] [Prob. fr. Prov. E. masty, adj., large, n., a great dog, prob. fr. mast fruit, and hence, lit., fattened with mast. There is perh. confusion with OF. mestif mongrel; cf. also F. m[^a]tin mastiff, OF. mastin.] (Zo["o]l.) A breed of large dogs noted for strength and courage. There are various strains, differing in form and color, and characteristic of different countries. [1913 Webster] Mastiff bat (Zo["o]l.), any bat of the genus Molossus; so called because the face somewhat resembles that of a mastiff. [1913 Webster]