modulation

[ moj-uh-ley-shuh n, mod-yuh- ]
/ ˌmɒdʒ əˈleɪ ʃən, ˌmɒd yə- /

noun

the act of modulating.
the state of being modulated.
Music. transition from one key to another.
Grammar.
  1. the use of a particular distribution of stress or pitch in a construction, as the use of rising pitch on here in John is here?
  2. the feature of a construction resulting from such use.

Origin of modulation

1350–1400; Middle English < Latin modulātiōn- (stem of modulātiō) rhythmical measure. See modulate, -ion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for modulation

British Dictionary definitions for modulation

modulation

/ (ˌmɒdjʊˈleɪʃən) /

noun

the act of modulating or the condition of being modulated
music the transition from one key to another
grammar
  1. another word for intonation (def. 1)
  2. the grammatical expression of modality
electrical engineering
  1. the act or process of superimposing the amplitude, frequency, phase, etc, of a wave or signal onto another wave (the carrier wave) or signal or onto an electron beamSee also amplitude modulation, frequency modulation, phase modulation, velocity modulation
  2. the variation of the modulated signal
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

Word Origin and History for modulation

modulation


n.

late 14c., "act of singing or making music," from Old French modulation "act of making music" (14c.), or directly from Latin modulationem (nominative modulatio) "rhythmical measure, singing and playing, melody," noun of action from past participle stem of modulari "regulate, measure off properly, measure rhythmically; play, play upon," from modulus (see module). Meaning "act of regulating according to measure or proportion" is from 1530s. Musical sense of "action of process of changing key" is first recorded 1690s.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for modulation

modulation

[ mŏj′ə-lāshən ]

n.

The functional and morphological fluctuation of cells in response to changing environmental conditions.
The variation of a property in an electromagnetic wave or signal, such as amplitude, frequency, or phase.
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