KREEP Hear it!

KREEP definition

KREEP (krēp)

noun

a type of basaltic lunar rock rich in potassium, phosphorus, etc.

Etymology: K (symbol for potassium) + r(are-)e(arth) e(lements) + p(hosphorus)

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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