Answer | Crossword Clue |
---|---|
femtoseconds | FEMTOSECOND, one quadrillionth part of a second |
femtosecond | one quadrillionth part of a second |
second | second part or the second one of a series |
cavatine | simple song or melody, properly one without a second part or a repeat; air |
cavatina | simple song or melody, properly one without a second part or a repeat; air |