† reperˈcusserObs.rare. Also 7 -our. [f.prec. + -er1, -or 2.] Med. A repellent. 1634T. Johnson Parey's Chirurg. 1032 The immoderate use of repercussers.1657Tomlinson Renou's Disp. 29 Others repel by a refrigerating quality..as water and other such repercussours.