Boss″age (�), n. [F. bossage, fr. bosse. See Boss a stud.] 1. (Arch.) A stone in a building, left rough and projecting, to be afterward carved into shape. Gwilt.
2. (Arch.) Rustic work, consisting of stones which seem to advance beyond the level of the building, by reason of indentures or channels left in the joinings. Gwilt.