Entry 1 sense Webster, 1913 Burrower /bẽr'-ō-ẽr/ · Bur·row·er · IPA /bˈɜroʊər/ 01 n. One who, or that which, burrows; an animal that makes a hole under ground and lives in it. 1. One who, or that which, burrows; an animal that makes a hole under ground and lives in it.