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Ma, MA, or mA may refer to:

Academia

Arts and entertainment

Music

Fictional characters

Other uses in arts and entertainment

Businesses and organizations

People

Language

Mythology

Places

Science, technology, and mathematics

Chemistry

Health and medicine

Mathematics

Measurements

  • Mach number (Ma), a measure of speed compared to the speed of sound
  • Megaannum (Ma), one million years
  • Megaampere (MA), a multiple of the SI unit of electric current, the ampere
  • Milliampere (mA), a multiple of the SI unit of electric current, the ampere

Other uses in science and technology

Other uses

See also