Associations to the word «Femtometer»
Wiktionary
FEMTOMETER, noun. US spelling of femtometre A length of 10-15 of a meter, 1 quadrillionth of a meter.
Dictionary definition
FEMTOMETER, noun. A metric unit of length equal to one quadrillionth of a meter.
Wise words
One merit of poetry few persons will deny: it says more and
in fewer words than prose.