n. 1 a lock or tuft of wool, cotton, etc. 2 a (also in pl.; often attrib.) material for quilting and stuffing made of wool-refuse or torn-up cloth (a flock pillow). b powdered wool or cloth. flock-paper (or -wallpaper) wallpaper sized and sprinkled with powdered wool to make a raised pattern. flocky adj.
[ ME f. OF floc f. L floccus ]