M.A.

名词 m.a.:

1. informal terms for a mother
   同义词：ma, mama, mamma, mom, momma, mommy, mammy, mum, mummy
2. a master's degree in arts and sciences
   同义词：Master of Arts, MA, Artium Magister, AM
3. one thousandth of an ampere
   同义词：milliampere, mA
4. a state in New England; one of the original 13 colonies
   同义词：Massachusetts, Bay State, Old Colony, MA