Definition of rugose in English:

rugose

adjective

Biology
  • Wrinkled; corrugated.

    ‘rugose corals’
    • ‘Scientists showed that diseases such as Aucuba mosaic, calico mosaic, latent virus, leaf rolling mosaic, mild mosaic, rugose mosaic, and severe mosaic are viral in nature.’
    • ‘The calcareous algae, stromatoporoids, tabulate corals, and rugose corals became conspicuous reef-builders throughout the tropical seas.’
    • ‘The leaf texture is quilted, or rugose, because the veins are depressed below the surface.’

Origin

Late Middle English: from Latin rugosus, from ruga wrinkle.

Pronunciation:

rugose

/ˈro͞oˌɡōs/