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synonyms
femtometer
[
fem
-t
uh
-mee-ter]
Word Origin
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femtometer
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noun
Physics
.
fermi.
Symbol
: fm
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Origin of
femtometer
First recorded in
1970–75;
femto-
+
meter
1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
