Strathspey

strath′spā, n. a Scotch dance, allied to and danced alternately with the reel, differing from it in being slower, and abounding in the jerky motion of dotted notes and semiquavers (when the latter precede the former it constitutes the Scotch snap ), while the reel is almost entirely in smooth, equal, gliding motion: the music for a strathspey, or its movement. [ Strathspey , valley of the Spey .]