microgram
/ˈmaɪkroʊˌɡræm/
noun
- A unit of mass equal to one millionth of a gram (symbol: µg).
- The doctor prescribed 200 micrograms of vitamin D per day.
- A single grain of pollen can weigh only a few micrograms.
- Scientists measure tiny amounts of pollutants in the air in micrograms per cubic meter.
Antonyms