femto-


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femto-

[′fem·tō]
(science and technology)
A prefix representing 10-15, which is 0.000 000 000 000 001, or one-thousandth of a millionth of a millionth.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

femto-

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