modulate

[moj-uh-leyt] /ˈmɒdʒ əˌleɪt/
verb (used with object), modulated, modulating.
1.
to regulate by or adjust to a certain measure or proportion; soften; tone down.
2.
to alter or adapt (the voice) according to the circumstances, one's listener, etc.
3.
Music.
  1. to attune to a certain pitch or key.
  2. to vary the volume of (tone).
4.
Telecommunications. to cause the amplitude, frequency, phase, or intensity of (a carrier wave) to vary in accordance with a sound wave or other signal, the frequency of the signal wave usually being very much lower than that of the carrier.
verb (used without object), modulated, modulating.
5.
Telecommunications.
  1. to modulate a carrier wave.
  2. Citizens Band Radio Slang. to talk; visit:
    Enjoyed modulating with you.
6.
Music. to pass from one key to another:
"to modulate abruptly from A to B flat."
Origin
1550–60; < Latin modulātus (past participle of modulārī to regulate (sounds), set to music, play an instrument). See module, -ate1
Related forms
modulability
[moj-uh-luh-bil-i-tee] /ˌmɒdʒ ə ləˈbɪl ɪ ti/ (Show IPA),
noun
modulative, modulatory
[moj-uh-luh-tawr-ee, -tohr-ee] /ˈmɒdʒ ə ləˌtɔr i, -ˌtoʊr i/ (Show IPA),
adjective
remodulate, verb (used with object), remodulated, remodulating.
unmodulated, adjective
unmodulative, adjective
well-modulated, adjective
Synonyms
2. temper, control.
British Dictionary definitions for well modulated
modulate (ˈmɒdjʊˌleɪt)
 
vb
1.  (tr) to change the tone, pitch, or volume of
2.  (tr) to adjust or regulate the degree of
3.  music
 a.  to subject to or undergo modulation in music
 b.  (often foll by to) to make or become in tune (with a pitch, key, etc)
4.  (tr) physics, electronics to cause to vary by a process of modulation
 
[C16: from Latin modulātus in due measure, melodious, from modulārī to regulate, from modus measure]
 
modulability
 
n
 
'modulative
 
adj
 
'modulatory
 
adj
 
'modulator
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin and History for well modulated
modulate
1610s, in music, from L. modulat-, pp. stem of modulari (see modulation). In telecommunications from 1908. Related: Modulated; modulating.
Online Etymology Dictionary, © 2010 Douglas Harper
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well modulated in Science
modulate
  (mŏj'ə-lāt')   
To vary the amplitude, frequency, or some other characteristic of a signal or power source. See also amplitude modulation, frequency modulation.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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