intensĭo, ōnis, f. [intendo].
I A stretching out , straining , effort : oculorum, Scrib. Comp. 255.—
B An intensifying , increase : calorem suum (sol) intensionibus ac remissionibus temperando fovet, Sen. Q. N. 7, 1, 3.—
II The tune : gravis, media, acuta, Censor. 12.