Definition, Meaning & Synonyms

mcg

Abbreviation
/ˈɛmˌsiːˈdʒiː/
Definition
A unit of measurement used to denote micrograms, which is one-millionth of a gram.
Examples
  • The recommended daily intake of vitamin B12 is about 2.4 mcg for adults.
  • Some medications are dosed in mcg to ensure precise administration.
  • A typical serving of this supplement contains 500 mcg of folic acid.
Meaning
The term mcg stands for microgram, a metric unit used primarily in science and medicine to measure very small quantities of substances, such as vitamins or medications.
Synonyms
  • microgram
  • mcg (short form)