First Known Use: 1951
Dictionary
picogram
noun pi·co·gram \ˈpē-kō-ˌgram, -kə-\
Definition of PICOGRAM
: one trillionth of a gram
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Origin of PICOGRAM
International Scientific Vocabulary
Medical Dictionary
picogram
noun pi·co·gram \ˈpē-kō-ˌgram, -kə-\
Medical Definition of PICOGRAM
: one trillionth of a gram—abbreviation pg
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