Word: femtobarn
Part of speech: Noun
Syllables: fem
to
barn
Definition: A unit of area equal to a billionth of a millionth (10-15) of a barn
Morphemes:
Affix: femto-
Language: en
PoS: Prefix
Meaning: In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10−15. Symbol: f.
Affix: barn
Language: en
PoS: Noun
Meaning: A unit of surface area equal to 10−28 square metres.