nanogram

noun

nano·​gram ˈna-nə-ˌgram 

: one billionth of a gram

Examples of nanogram in a Sentence

Recent Examples on the Web

During Arriaga’s autopsy, medical examiners found her blood to contain the opiate Demerol at 793 nanograms per milliliter, according to the warrant. — Lillie Davidson, Fort Worth Star-Telegram, 16 July 2026

Most labs call normal somewhere between 300 and 1,000 nanograms per deciliter. — Dr. Jamin Brahmbhatt, CNN Money, 16 July 2026

Experts recommend that men should consider treatment if their levels dip below 300 nanograms per deciliter (ng/dL). — Keith Wagstaff, Los Angeles Times, 10 June 2026

Drug concentrations are measured to the nanogram; vital signs are tracked with digital precision; and laboratory values are analyzed to multiple decimal points. — Gary Zammit, Forbes.com, 21 May 2026

Word History

Etymology

International Scientific Vocabulary

First Known Use

1951, in the meaning defined above

Kids Definition

nanogram

noun

nano·​gram

ˈnan-ə-ˌgram

: one billionth of a gram

Medical Definition

nanogram

noun

nano·​gram

variants or chiefly British nanogramme

ˈnan-ə-ˌgram 

: one billionth of a gram

—abbreviation ng