AMPLITUDES
Noun
amplitudes
plural of amplitude
Source: Wiktionary
AMPLITUDE
Am"pli*tude, n. Etym: [L. amplitudo, fr. amplus: cf. F. amplitude.
See Ample.]
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.
(a) Of extent of capacity or intellectual powers. "Amplitude of
mind." Milton. "Amplitude of comprehension." Macaulay.
(b) Of extent of means or resources. "Amplitude of reward." Bacon.
3. (Astron.)
(a) 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.
(b) 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.
4. (Gun.)
Definition: The horizontal line which measures the distance to which a
projectile is thrown; the range.
5. (Physics)
Definition: The extent of a movement measured from the starting point or
position of equilibrium; -- applied especially to vibratory
movements.
6. (math.)
Definition: 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."
Source: Webster’s Unabridged Dictionary 1913 Edition