picogram

noun

pi·​co·​gram ˈpē-kō-ˌgram How to pronounce picogram (audio)
-kə-
: one trillionth of a gram

Examples of picogram in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
While a picogram is a trillionth of a gram, the test is for picograms per milliliter, and a horse can have 50,000 milliliters of blood. — Stephen Whyno, chicagotribune.com, 10 May 2021 How can minuscule changes in a cell’s mass be measured when the whole organism weighs just a picogram (10-12 grams)? — Jeffrey Marlow, Discover Magazine, 12 Oct. 2016 Earlier methods for producing the material turned up mere picograms. — Courtney Linder, Popular Mechanics, 28 Jan. 2020 Even a trace amount of betamethasone — a picogram is a trillionth of one gram — is prohibited on race day in Kentucky, Maryland and New York, which are home to the sport's Triple Crown races, and considered a violation. — BostonGlobe.com, 2 June 2021 Even a trace amount of betamethasone — a picogram is a trillionth of one gram — is prohibited on race day in Kentucky, Maryland and New York, which are home to the sport’s Triple Crown races, and considered a violation. — The Salt Lake Tribune, 2 June 2021

Word History

Etymology

International Scientific Vocabulary

First Known Use

1951, in the meaning defined above

Time Traveler
The first known use of picogram was in 1951

Rhymes for picogram

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Browse Nearby Words

Pico della Mirandola
picogram
picoid
See all Nearby Words

Cite this Entry

“Picogram.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/picogram. Accessed 7 Jul. 2026.

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Medical Definition

picogram

noun
pi·​co·​gram ˈpē-kō-ˌgram, -kə- How to pronounce picogram (audio)
: one trillionth of a gram
—abbreviation pg
Last Updated: - Updated example sentences
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