What does "nanogram" mean?

An SI unit of mass equal to 10⁻⁹ grams. Symbol: ng

What is a synonym for "nanogram"?

Common synonyms include: ng, billionth gram, tiny quantity, trace amount.

Holonyms: microgram < milligram < gram < kilogram < megagram < gigagram

noun

noun ·3 syllables ·Rare ·Advanced level

Noun

1
An SI unit of mass equal to 10⁻⁹ grams. Symbol: ng
"Holonyms: microgram < milligram < gram < kilogram < megagram < gigagram"
2
one billionth (1/1,000,000,000) gram wordnet

"Holonyms: microgram < milligram < gram < kilogram < megagram < gigagram"

From nano- + gram.