rugose
adjective
ru·gose ˈrü-ˌgōs 
1
: full of wrinkles
rugose cheeks
2
: having the veinlets sunken and the spaces between elevated
rugose leaves of the sage
rugosity
rü-ˈgä-sə-tē
noun 
Did you know?
Rugose was borrowed into English in the late 17th century from the Latin adjective rugosus ("wrinkled"), which itself derives from "ruga" ("wrinkle"). One descendant of "ruga" that you'll probably recognize is "corrugate," which initially meant "to form or shape into wrinkles or folds." Another, which might be more familiar to scientists, is rugulose, meaning "finely wrinkled." In addition, there is the noun "rugosity," which can refer to either the quality or state of being full of wrinkles or an individual wrinkled place.
Word History
Etymology
Latin rugosus, from ruga
First Known Use
15th century, in the meaning defined at sense 1
Medical Definition
rugose
adjective
ru·gose ˈrü-ˌgōs
: having many wrinkles
rugose skin