pi·​co·​gram | \ ˈpē-kō-ˌgram How to pronounce picogram (audio) , -kə-\

Definition of picogram

: one trillionth of a gram

Examples of picogram in a Sentence

Recent Examples on the Web

Grooves in the pad directed water from the central and purest part of the core to instruments known as mass spectrometers that continuously measured the quantity of lead down to one hundredth of a picogram, which is one trillionth of a gram. New York Times, "An Ice Core Reveals the Economic Health of the Roman Empire," 14 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'picogram.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of picogram

1951, in the meaning defined above

History and Etymology for picogram

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Time Traveler for picogram

The first known use of picogram was in 1951

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More Definitions for picogram


pi·​co·​gram | \ ˈpē-kō-ˌgram, -kə- How to pronounce picogram (audio) \

Medical Definition of picogram

: one trillionth of a gram abbreviation pg

Comments on picogram

What made you want to look up picogram? Please tell us where you read or heard it (including the quote, if possible).


to affect and impair by alcohol or a drug

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