shimmer
Cross references: 1. flash 1. shim.mer \'shim-*r\ \-(*-)rin\ vb or shim.mer.ing [ME schimeren, fr. OE scimerian; akin to OE sci-nan to shi]ne - more at SHINE 1: to shine with a tremulous or fitful light : GLIMMER 2: to reflect a wavering sometimes distorted visual image : to cause to shimmer 2. shimmer \'shim-(*-)re-\ n 1: a fitful tremulous light : subdued sparkle or sheen : GLIMMER 2: a wavering sometimes distorted visual image usu. produced by a reflectio n from heat waves - shim.mery aj
Webster's English Dictionary