Ridged is a term used to describe a surface that has been raised or indented in some way. WRINKLED, FURROWED, CORRUGATED, FLUTED, GROOVED, and waled are all words that can be used to describe a ridged surface. WRINKLED describes a surface that has been creased or folded, while FURROWED refers to a surface that has been marked with deep grooves. CORRUGATED is a term used to describe a surface that has been formed into alternating ridges and grooves, while FLUTED is used to describe a surface that has been cut with parallel grooves. GROOVED describes a surface that has been cut with a continuous channel, while waled is used to describe a surface that has been formed with ridges and furrows. Finally, STRIATED is used to describe a surface that has been marked with narrow, parallel lines or grooves.