nanogram

[ nan-uh-gram, ney-nuh- ]

noun

1. one billionth of a gram. : ng

nanogram

/ ˈnænəʊˌɡræm /

noun

1. one billionth (10 ^–9) of a gram ng

Word History and Origins

Origin of nanogram¹

First recorded in 1950–55; nano- + -gram ²