microgram (μg, mcg) /mī″krəgram/ , a unit of measurement of mass equal to one millionth (10−6) of a gram. See also gram.
microgram (μg, mcg)
microgram (μg, mcg) /mī″krəgram/ , a unit of measurement of mass equal to one millionth (10−6) of a gram. See also gram.