diatomaceous earth

diatomaceous earth definition - medical

di·a·to·ma·ceous earth (dīˌə-tə-māˈshəs, dī-ătˌə-)

noun
A powder made of the desiccated shells of diatoms, used as a filtering agent, adsorbent, and abrasive in many chemical operations.

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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