Having many wrinkles or creases; ridged or wrinkled.(adjective)
Botany Having a rough, wrinkled surface, as in certain prominently veined leaves.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "rugose" in a sentence
"I remember being in high school reading Lovecraft with a dictionary beside me to look up works like “rugose” and “ululation”."
"And by esoteric, I mean "squamous and rugose", nudge nudge wink wink."
"Finally, something more frightening than the epilogue to The Invisible Man, with nary a squamous or rugose in sight."