adjective
Usage: usually capitalized M&T
Etymology: from Model T, early type of motor car having only two speeds forward and a hand gasoline feed that was manufactured by the Ford Motor Co. between 1909 and 1927
1. : belonging to an initial or rudimentary phase of development
when nuclear weapons were in the Model T stage of development — New York Times
2. : old-fashioned , outmoded
a Model T plot
a Model T school plant