What does academic or academical mean?
The definition of academic and academical
Ac`a*dem”ic, Ac`a*dem”ic*al, a.
Etym: [L. academicus: cf. F. académigue. See Academy.]

1 Belonging to the school or philosophy of Plato; as, the Academic sect or philosophy.
2 Belonging to an academy or other higher institution of learning; scholarly; literary or classical, in distinction from scientific. “Academic courses.” Warburton. “Academical study.” Berkeley.