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picogram

American  
[pee-kuh-gram, pahy-] / ˈpi kəˌgræm, ˈpaɪ- /

noun

  1. one trillionth of a gram. pg


Etymology

Origin of picogram

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

We naturally make melatonin in our brains, but only in picogram amounts, or one trillionth of a gram, which Dr. Rosen described as “a whiff of it coming out at dusk.”

From New York Times Jan. 11, 2022

A picogram is a trillionth of a gram and is measured in milliliters.

From Los Angeles Times May 10, 2021

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