Ma n. : A child's word for mother.

Ma n. : In Oriental countries, a respectful form of address given to a woman; mother.

Ma conj. : But; -- used in cautionary phrases; as, "Vivace, ma non troppo presto" (i. e., lively, but not too quick).

Example:
What is the difference between an Ma degree and an MS degree for the Psychology field?

Taxonomy
academic degree, free encyclopedia, myth, Lion King, abbreviation, Arthur, Merlin, protocol, IP Multimedia Subsystem, Ma River, country code, surname, negative space, Marvellous, Dublin, Scotland, music, search.

Defination from the web:
Ma), a measure of speed compared to the speed of sound. Megaannum (Ma), one million (1,000,000) years ... Moving average model (MA(q)), statistics. a set of decision problems (MA) that can be decided by an Arthur–Merlin protocol. Martin's axiom, an axiom in mathematical logic ...