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nanogram

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

noun

one billionth of a gram. Abbreviation: ng

Origin of nanogram

First recorded in 1950–55; nano- + -gram2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for nanogram

nanogram

nanogramme

noun

one billionth (10 –9) of a gramSymbol: ng
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
nanogram in Medicine

nanogram

[năn′ə-grăm′]

n.

One billionth (10-9) of a gram.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.