Femtometer Definition
noun
US spelling of femtometre: A length of 10-15 of a meter, 1 quadrillionth of a meter.
Wiktionary
Synonyms:
Other Word Forms of Femtometer
Noun
Singular:
femtometer
Plural:
femtometersOrigin of Femtometer
-
femto- + meter
From Wiktionary
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