Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Having a rough, ridged, or wrinkled surface.

from The Century Dictionary.

  • Having rugæ; rugate or rugous; corrugated; wrinkled.
  • In botany, rough and wrinkled: applied to leaves in which the reticulate venation is very prominent beneath, with corresponding creases on the upper side, and also to lichens, algæ, etc., in which the surface is reticulately roughened.
  • Specifically, of or pertaining to the Rugosa.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective (Bot.) Wrinkled; full of wrinkles

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Having wrinkles, creases or ridges
  • adjective botany Having a rough, wrinkled surface

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective of leaves; ridged or wrinkled

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin rūgōsus, from rūga, wrinkle.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin rūgōsus "wrinkled"

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Examples

  • Finally, something more frightening than the epilogue to The Invisible Man, with nary a squamous or rugose in sight.

    Making Light: The "agency model" as I understand it 2010

  • I remember being in high school reading Lovecraft with a dictionary beside me to look up works like “rugose” and “ululation”.

    Terrific Tuesday with Sean McLachlan:) Molly Daniels 2010

  • I remember being in high school reading Lovecraft with a dictionary beside me to look up works like “rugose” and “ululation”.

    Archive 2010-06-01 Molly Daniels 2010

  • And by esoteric, I mean "squamous and rugose", nudge nudge wink wink.

    (Insert clever title about cleaning here) with the Laundry! Big Jim 2008

  • And by esoteric, I mean "squamous and rugose", nudge nudge wink wink.

    Archive 2008-08-01 Big Jim 2008

  • That's a pretty squamous, rugose, and blasphemous thought.

    The Ayatollah and the Philosophe 2007

  • Later Paleozoic seas were dominated by crinoid and blastoid echinoderms, articulate brachiopods, graptolites, and tabulate and rugose corals.

    Paleozoic 2009

  • The Permian extinction, 244 million years ago, devastated the marine biota: tabulate and rugose corals, blastoid echinoderms, graptolites, and most crinoids died out, as did the last of the trilobites.

    Paleozoic 2009

  • The Jennifer Morgue takes the reader on a wild adventure through the worlds of Lovecraft and Ian Fleming, non-Euclidian mathematics and computer hackerdom — sort of like Austin Powers, only more squamous and rugose — with fast cars and faster women.

    Archive 2008-12-01 RobB 2008

  • The Jennifer Morgue takes the reader on a wild adventure through the worlds of Lovecraft and Ian Fleming, non-Euclidian mathematics and computer hackerdom — sort of like Austin Powers, only more squamous and rugose — with fast cars and faster women.

    Books in the Mail (W/E 12/20/2008) RobB 2008

  • The central growing stem is particularly stout, and the foliage, which can be either regular or potato leaf, tends to be a darker bluish green and have a puckered, wrinkled characteristic that is known as "rugose".

    The Dwarf Tomato Project 2023

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