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Definition of "membranous" [mem•bra•nous]

  • Relating to, made of, or similar to a membrane. (adjective)
  • Pathology Characterized by the formation of a membrane or a layer similar to a membrane. (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 "membranous" in a sentence
  • "Every little cell is surrounded by a thin membranous wall, like a soap bubble."
  • "The _ligule_ is a thin short membranous ridge with"
  • "The greater portion of it is thick and muscular and constitutes the muscular ventricular septum, but its upper and posterior part, which separates the aortic vestibule from the lower part of the right atrium and upper part of the right ventricle, is thin and fibrous, and is termed the membranous ventricular septum."