Mase \Mase\, n. & v. See {Maze}. [Obs.] --Chaucer. [1913 Webster]
mase \mase\ (m[=a]z), v. i. [by back-formation from {maser}[2].] To emit coherent microwave radiation, as in a maser[2]. [PJC]
MASE Message Administration Service Element