FEMTOSECOND
Meaning of FEMTOSECOND in English
transcription, транскрипция: [ ˈfem(p)-tə-ˌse-kənd, -kənt, -tō- ]
noun
Date: 1976
: one quadrillionth of a second
Merriam-Webster's Collegiate English vocabulary.
Энциклопедический словарь английского языка Merriam Webster.
2003