| 释义 |
am·pli·tude
\ˈampləˌtüd, ˈaam-, -lə.ˌtyüd\ noun
(-s)
Etymology: Latin amplitudo, from amplus + -tudo -tude
1. : the quality or state of being ample : extent especially of surface or space : largeness of dimensions : size
2. : largeness of scope : breadth, abundance, fullness:
a. : extent of mental capacity or intellectual power
b. : extent especially of means, resources, dignity, or splendor
3. navigation
a. : 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 — compare azimuth
b. : the arc of the horizon between the magnetic east or west point and a heavenly body — called also magnetic amplitude
4. : the extent of a vibratory movement or of an oscillation : the maximum numerical value of a periodically varying quantity (as an alternating current, a radio wave, the air pressure in a sound-wave field, or the angular displacement of a pendulum) measured from its normal or equilibrium value taken as zero
5. : argument 6b
6. : the range of ecological adaptability of a kind or group of organisms (as of a species, genus, or family) |