Having rugae or wrinkles, creases, ridges, or corrugation.

(figuratively, rare) Rugged, rough, unrefined.

(botany) Having a rough, wrinkled, or wavy surface; commonly in parasynthetic usage e.g. "rugose-veined" or "rugose-leaved".

(paleontology) Describing a fossil coral of the extinct order †Rugosa (also called Tetracoralla), this order has horn-shaped corals with surfaces covered with ridges.

(entomology) Used when combined with another adjective, for example, rugose-reticulate or rugose-punctate.