intensĭo
ōnis, f.
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.