picosecond

[ pee-kuh-sek-uhnd, pahy- ]

noun

1. one trillionth of a second. : ps, psec

picosecond

/ ˈpaɪkəʊ-; ˈpiːkəʊˌsɛkənd /

noun

1. a million millionth of a second; 10 ^–12second

Word History and Origins

Origin of picosecond¹

First recorded in 1965–70; pico- + second ²