{ Bron"to*lite (&?;), Bron"to*lith (&?;), } n. [Gr. &?; + -lite, -lith.] An aërolite. [R.]
Bron*tol"o*gy (&?;), n. [Gr. &?; thunder + -logy.] A treatise upon thunder.
||Bron`to*sau"rus (&?;), n. [NL., fr. Gr. &?; thunder + &?; lizard.] (Paleon.) A genus of American jurassic dinosaurs. A length of sixty feet is believed to have been attained by these reptiles.
||Bron`to*the"ri*um (&?;), n. [NL., fr. Gr. &?; thunder + &?; beast.] (Paleon.) A genus of large extinct mammals from the miocene strata of western North America. They were allied to the rhinoceros, but the skull bears a pair of powerful horn cores in front of the orbits, and the fore feet were four-toed. See Illustration in Appendix.
||Bron`to*zo"um (&?;), n. [NL., fr. Gr. &?; thunder + &?; animal.] (Paleon.) An extinct animal of large size, known from its three-toed footprints in Mesozoic sandstone.
The tracks made by these reptiles are found eighteen inches in length, and were formerly referred to gigantic birds; but the discovery of large bipedal three-toed dinosaurs has suggested that they were made by those reptiles.
Bronze (&?;), n. [F. bronze, fr. It. bronzo brown, fr. OHG. br&?;n, G. braun. See Brown, a.] 1. An alloy of copper and tin, to which small proportions of other metals, especially zinc, are sometimes added. It is hard and sonorous, and is used for statues, bells, cannon, etc., the proportions of the ingredients being varied to suit the particular purposes. The varieties containing the higher proportions of tin are brittle, as in bell metal and speculum metal.