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[moj-uh-leyt] /ˈmɒdʒ əˌleɪt/
verb (used with object), modulated, modulating.
to regulate by or adjust to a certain measure or proportion; soften; tone down.
to alter or adapt (the voice) according to the circumstances, one's listener, etc.
  1. to attune to a certain pitch or key.
  2. to vary the volume of (tone).
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.
  1. to modulate a carrier wave.
  2. Citizens Band Radio Slang. to talk; visit:
    Enjoyed modulating with you.
Music. to pass from one key to another:
to modulate abruptly from A to B flat.
Origin of modulate
1550-60; < Latin modulātus (past participle of modulārī to regulate (sounds), set to music, play an instrument). See module, -ate1
Related forms
[moj-uh-luh-bil-i-tee] /ˌmɒdʒ ə ləˈbɪl ɪ ti/ (Show IPA),
modulative, modulatory
[moj-uh-luh-tawr-ee, -tohr-ee] /ˈmɒdʒ ə ləˌtɔr i, -ˌtoʊr i/ (Show IPA),
remodulate, verb (used with object), remodulated, remodulating.
unmodulated, adjective
unmodulative, adjective
well-modulated, adjective
2. temper, control. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for unmodulated
Historical Examples
  • But the signal was unmodulated, so there was no image nor any sound.

    The Machine That Saved The World William Fitzgerald Jenkins
  • "Sorry to keep you, my dear," said the high, unmodulated voice.

    Moth and Rust Mary Cholmondeley
  • His lips were thick, and the tone of his voice broad and unmodulated.

    Caleb Williams William Godwin
  • Her voice was even and unmodulated, not too friendly and not too cold.

    Doctor Claudius, A True Story F. Marion Crawford
  • Macaulay sat down by his mother, and began telling the incidents of the day's hunting in his smooth, unmodulated voice.

    Paul Patoff

    F. Marion Crawford
  • In the species of the baudini group the calls are unmodulated and lack secondary notes.

  • "The responsibility of my position here is sometimes felt by me to be very heavy," muttered the man in a low, unmodulated tone.

    The Sword of Damocles Anna Katharine Green
  • I like this varied emphasis better than the monotonous pound of unmodulated people who hammer their meaning into my palm.

    The World I Live In

    Helen Keller
  • "I'm going out," cried the former in the loud and unmodulated voice of the deaf.

    The Chief Legatee

    Anna Katharine Green
British Dictionary definitions for unmodulated


(transitive) to change the tone, pitch, or volume of
(transitive) to adjust or regulate the degree of
  1. to subject to or undergo modulation in music
  2. (often foll by to) to make or become in tune (with a pitch, key, etc)
(transitive) (physics, electronics) to cause to vary by a process of modulation
Derived Forms
modulability (ˌmɒdjʊləˈbɪlɪtɪ) noun
modulative, modulatory, adjective
modulator, noun
Word Origin
C16: from Latin modulātus in due measure, melodious, from modulārī to regulate, from modus measure
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for unmodulated



1610s, in music, back-formation from modulation, or else from Latin modulatus, past participle of modulari. General sense from 1620s. In telecommunications from 1908. Related: Modulated; modulating.

Online Etymology Dictionary, © 2010 Douglas Harper
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unmodulated in Science
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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