In music, fine; clear and mellow; flute-like: as, fluted notes.Grooved; furrowed; ornamented or characterized by a series of flutes: as, a fluted column; a fluted ruffle.Specifically— In entomology, having parallel grooves or depressions running in a longitudinal direction.In armor, ornamented with ridges, corrugations, and the like, which in some cases added also to the utility of the piece as giving greater strength. Suits of armor of the sixteenth century, both Italian and German, are often richly fluted. See cut in next column.