fluting noun 5adjective 1forms 1 noun5 •A decoration consisting of parallel, normally vertical, flutes (grooves) incised into the surface. •The act of making such grooves. •The erosional process by which a well-jointed coarse-grained rock, such as granite or gneiss, surface develops a set of flutes. •A fluted pleat; a small, rounded or pressed pleat used as trimming on a garment. •A flute-like sound. adjective1 •Making a sound like a flute. formsflutings