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2017 Word of the Year

picogram

[pee-kuh-gram, pahy-] /ˈpi kəˌgræm, ˈpaɪ-/
noun
1.
one trillionth of a gram.
Abbreviation: pg.
Origin of picogram
1950-1955
First recorded in 1950-55; pico- + -gram2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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picogram in Medicine

picogram pi·co·gram (pē'kə-grām', pī'-)
n.
Abbr. pg
One-trillionth (10-12) of a gram.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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