Dictionary

microgram

microgram

noun mi·cro·gram \ˈmī-krə-ˌgram\

Definition of MICROGRAM

:  one millionth of a gram — see metric system table

Origin of MICROGRAM

International Scientific Vocabulary
First Known Use: circa 1890

microgram

noun mi·cro·gram \ˈmī-krə-ˌgram\   (Medical Dictionary)

Medical Definition of MICROGRAM

1
:  one millionth of a gram
2
:  micrograph 1

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