femtoseconde

== Dutch == === Etymology === From femto- +‎ seconde. === Pronunciation === Hyphenation: fem‧to‧se‧con‧de === Noun === femtoseconde f (plural femtoseconden or femtosecondes, no diminutive) femtosecond: 10-15 seconds == French == === Pronunciation === IPA(key): /fɛm.tɔ.sə.ɡɔ̃d/