quintillion Hear it!

quintillion definition

quin·til·lion (kwin til′yən)

noun

  1. the number represented by 1 followed by 18 zeros
  2. Brit. the number represented by 1 followed by 30 zeros

Etymology: Fr < L quintus, a fifth (see quintet) + Fr, (m)illion

adjective

amounting to one quintillion in number

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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