(paleontology) Any ornithopod dinosaur of the family Hadrosauridae.

(inorganic chemistry, alchemy) A metal resistant to corrosion, oxidizing and tarnishing, such as gold, platinum, copper and mercury.

(geology) The Paleozoic era.

To make such a sound. / (intransitive, figuratively) To travel very fast, as if making the sounds of brakes being released.