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

  • n. A thin scale, plate, or layer of bone or tissue, as in the gills of a bivalve mollusk or around the minute vascular canals in bone.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a thin, plate-like structure
  • n. the gill of a mushroom.

from the GNU version of the Collaborative International Dictionary of English

  • n. a thin plate or scale of anything, as a thin scale growing from the petals of certain flowers; or one of the thin plates or scales of which certain shells are composed.

from The Century Dictionary and Cyclopedia

  • n. A thin plate or scale. Specifically
  • n. Synonyms See lamina.
  • n. plural The British pharmacopœial name for medicated gelatin disks used in ophthalmic practice.

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

  • n. a thin membrane that is one of the calcified layers that form bones
  • n. any of the radiating leaflike spore-producing structures on the underside of the cap of a mushroom or similar fungus
  • n. thin plate


Latin lāmella, small thin plate, diminutive of lāmina, thin plate.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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