I. Ma ‧ ry ‧ land /ˈme ə rilənd/ BrE AmE written abbreviation , MD
a state on the east coast of the US, and one of the 13 original states of the US. Its largest city is Baltimore, which is a busy port.
II. MD BrE AmE British English , M.D. American English /ˌem ˈdiː/ noun
1 . [countable] (Doctor of Medicine) a university ↑ degree in medicine that you can get after your first degree
2 . [countable] British English the abbreviation of managing director ⇨ CEO
3 . [uncountable] the abbreviation of muscular dystrophy