- (n.) State of being ample; extent of surface or space; largeness of dimensions; size.
- (n.) The horizontal line which measures the distance to which a projectile is thrown; the range.
- (n.) Of extent of means or resources.
- (n.) The extent of a movement measured from the starting point or position of equilibrium; -- applied especially to vibratory movements.
- (n.) Of extent of capacity or intellectual powers.
- (n.) An angle upon which the value of some function depends; -- a term used more especially in connection with elliptic functions.
- (n.) Largeness, in a figurative sense; breadth; abundance; fullness.
- (n.) The arc of the horizon between the true east or west point and the center of the sun or a star, at its rising or setting. At the rising, the amplitude is eastern or ortive: at the setting, it is western, occiduous or occasive. It is also northern or southern, when north or south of the equator.
- (n.) The arc of the horizon between the true east or west point and the foot of the vertical circle passing through any star or object.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). amplitude. Retrieved September 24, 2026, from http://smartdefine.org/amplitude/definitions/1973343 |
| Chicago | Webster's. 2011. "amplitude" http://smartdefine.org/amplitude/definitions/1973343 (accessed September 24, 2026). |
| Harvard | Webster's 2011, amplitude, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/amplitude/definitions/1973343>. |
| MLA | Webster's. "amplitude" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/amplitude/definitions/1973343> |