FEMTO


Meaning of FEMTO in English

Function: combining form

Etymology: International Scientific Vocabulary, from Danish or Norwegian femten fifteen, from Old Norse fimmt ā n; akin to Old English f ī ft ē ne fifteen

: one quadrillionth (10 -15 ) part of < femto second>

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.