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3 definitions found
 for Amplitude
From The Collaborative International Dictionary of English v.0.48 :

  Amplitude \Am"pli*tude\, n. [L. amplitudo, fr. amplus: cf. F.
     amplitude. See Ample.]
     1. State of being ample; extent of surface or space;
        largeness of dimensions; size.
        [1913 Webster]
              The cathedral of Lincoln . . . is a magnificent
              structure, proportionable to the amplitude of the
              diocese.                              --Fuller.
        [1913 Webster]
     2. Largeness, in a figurative sense; breadth; abundance;
        (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.
            [1913 Webster]
     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.
            [1913 Webster]
     4. (Gun.) The horizontal line which measures the distance to
        which a projectile is thrown; the range.
        [1913 Webster]
     5. (Physics) The extent of a movement measured from the
        starting point or position of equilibrium; -- applied
        especially to vibratory movements.
        [1913 Webster]
     6. (math.) An angle upon which the value of some function
        depends; -- a term used more especially in connection with
        elliptic functions.
        [1913 Webster]
     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."
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

      n 1: (physics) the maximum displacement of a periodic wave
      2: the property of copious abundance [syn: amplitude,
         bountifulness, bounty]
      3: greatness of magnitude

From Moby Thesaurus II by Grady Ward, 1.0 :

  244 Moby Thesaurus words for "amplitude":
     abundance, affluence, amount, ample sufficiency, ampleness,
     antinode, area, auditory effect, auditory phenomenon, avalanche,
     beam, bigness, body, bonanza, boundlessness, bountifulness,
     bountiousness, breadth, broadness, bulk, bumper crop, caliber,
     camber, capaciousness, capacity, cloud of words, commodiousness,
     comprehensiveness, congestion, copiousness, coverage, crest,
     de Broglie wave, depth, diameter, diffraction, diffuseness,
     diffusion, diffusiveness, dimension, dimensions, distance,
     distance across, effusion, effusiveness, electromagnetic radiation,
     electromagnetic wave, enormity, enormousness, expanse, expansion,
     expansiveness, extension, extensiveness, extent, extravagance,
     exuberance, fecundity, fertility, flight path, flood, flood tide,
     flow, fluency, foison, force, formidableness, formlessness,
     frequency, frequency band, frequency spectrum, full, full measure,
     fullness, gauge, generosity, generousness, gigantism, girth,
     grandeur, grandness, great abundance, great plenty, great scope,
     greatness, guided wave, gush, gushing, height, high tide,
     high water, hugeness, immensity, impletion, in phase, infinity,
     intensity, interference, landslide, largeness, latitude,
     lavishness, length, liberality, liberalness, light, logorrhea,
     longitudinal wave, lots, loudness, luxuriance, macrology,
     magnitude, mass, matter, maximum, measure, measurement,
     mechanical wave, might, mightiness, more than enough, much,
     muchness, myriad, myriads, node, noise, numbers, numerousness,
     opulence, opulency, out of phase, outpour, outpouring, overflow,
     overfullness, palilogy, period, periodic wave, phone, plenitude,
     plenteousness, plentifulness, plenty, pleonasm, plethora, power,
     prevalence, prodigality, prodigiousness, productiveness,
     productivity, profuseness, profusion, prolificacy, prolificity,
     proportion, proportions, quantities, quantity, quantum, radio wave,
     radius, rampancy, range, rankness, ray, reach, redundancy,
     reinforcement, reiteration, reiterativeness, repetition for effect,
     repetitiveness, repleteness, repletion, resonance,
     resonance frequency, rich harvest, rich vein, richness, riot,
     riotousness, roominess, satiety, saturation, saturation point,
     scads, scale, scope, seismic wave, shock wave, shower, size,
     skin effect, skin friction, slip, sonance, sound,
     sound intensity level, sound propagation, sound wave, space,
     spaciousness, span, spate, speech sound, spread, spring tide,
     stagger, stream, strength, stretch, stupendousness, substance,
     substantiality, substantialness, sum, superabundance, superfluity,
     superflux, surface wave, surfeit, talkativeness, tautology,
     teemingness, tidal wave, tirade, transverse wave, tremendousness,
     trough, ultrasound, vastness, volume, wave, wave equation,
     wave motion, wave number, wavelength, wealth, whole, wideness,

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