concretion

concretion definition - medical

con·cre·tion (kən-krēˈshən)

noun
A solid mass, usually composed of inorganic material, formed in a cavity or tissue of the body; a calculus.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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