1 State of being ample; extent of surface or space; largeness of dimensions; size. The cathedral of Lincoln . . . is a magnificent structure, proportionable to the amplitude of the diocese. Fuller.
2 Largeness, in a figurative sense; breadth; abundance; fullness.
The horizontal line which measures the distance to which a projectile is thrown; the range.
The extent of a movement measured from the starting point or position of equilibrium; — applied especially to vibratory movements.
An angle upon which the value of some function depends; — a term used more especially in connection with elliptic functions. Magnetic amplitude, the angular distance of a heavenly body, when on the horizon, from the magnetic east or west point as indicated by the compass. The difference between the magnetic and the true or astronomical amplitude (see 3 above) is the “variation of the compass.”