1 definition by WBlitz

A membrane in a thin, film-like structure that acts as a barrier against fluids. Membranes come in many different types -- mainly biological and synthetic.

Biological membranes are usually found inside of your body, covering organs, or anywhere else where moisture is necessary.

Some examples of where biological membranes can be found are on the inner walls of your cheeks (your mouth), a thin layer on the outside of your eyes, the glans of a human penis, the inside of a vagina, and covering the outside of a penis for several species of animals that have some form of sheath.
Doctor: I urge you to conciser circumcising your newborn son to prevent possible medical problems in the future.
Father: How does removing a layer of skin that's supposed to protect the membrane on his penis and preserve its sensitivity prevent future problems?
Father: It should be his own decision in the future to have it removed. What gives people the right to make life-changing decisions for someone that hasn't even spoken their first word yet?
Doctor: ... What happened to this being an example for membranes?
by WBlitz September 23, 2013
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