Definition of modulation in English:



mass noun
  • 1The exertion of a modifying or controlling influence on something.

    ‘endorphins in the body are responsible for the modulation of pain sensation’
    • ‘They can elicit some of their benefits via these mechanisms by altered cholesterol transport, modulation of cellular proliferation, or induced apoptosis in specific tissues.’
    • ‘Modulation in herbal medicine means to counteract the effects of stress and bring a process back to normal levels.’
    • ‘The small decline in the percentage of cells staining positive for the B cell antigen suggests there may be some modulation of the developing immune system of the foals.’
    • ‘The active component thought to provide much of the pain modulation and cognitive effects of marijuana is called THC.’
    • ‘He is very sensitive to the modulations of belief and theology underlying these manifestations of providential meaning.’
    • ‘Because this reduces melatonin, it produces modulation of cancer, cardiac, reproductive, and neurological health effects and mortality rate in global human populations.’
    • ‘Through this modulation of ovulation timing in a social group of women, cycles may synchronize, desynchronize, or stabilize.’
    • ‘Possible therapeutic utilities could include modulation of gastrointestinal motility and treatment of impotence.’
    • ‘He addresses the role of probiotics in the modulation of the immune system in man and in animals.’
    • ‘They may even play a role in the modulation of mood.’
  • 2Variation in the strength, tone, or pitch of one's voice.

    ‘excellent voice modulation’
    • ‘Voice modulation alone can sometimes drive home a point better than a power point presentation can do.’
    • ‘His voice modulation is simply superb.’
    • ‘You should practice at least two scripts each day with proper diction, pronunciation, and modulation.’
    • ‘Her voice modulation is of the highest caliber, very melodious, full of harmonious unity and solid stamina.’
    • ‘She has all the timing, modulations, implications, and vocal range in the world, and then that extra something I can only call soul.’
    • ‘These individuals usually have normal pitch modulation in their speaking voices but are unable to carry a tune or distinguish much change when a series of pitches is presented.’
    • ‘It is one name in three inflections, a polyphonic unity of three modulations of voice.’
    • ‘You need some control over your throat to produce variation and modulation in your voice as and when necessary.’
    • ‘The swooping vocal modulations suggest North Africa, while a violin hints at East European klezmer.’
    • ‘He is able to assay the tricky transition from youthful to mature Hughes with body language and vocal modulation.’
    1. 2.1 Alteration of the amplitude or frequency of an electromagnetic wave or other oscillation in accordance with the variations of a second signal.
      ‘modulation of the ray amplitude will result in sound being heard’
      ‘researchers observed the modulation of electrical conductance’
      • ‘The background noise should be homogeneous, while the dark matter signal should show the annual modulation.’
      • ‘The modulation has a period of four lattice spacings along the direction parallel to the copper-oxygen bonds.’
      • ‘Not all theoretical models require the simultaneous presence of magnetic and charge-density modulations.’
      • ‘Another way to look for these fermions is by measuring the annual modulation of the signals from the detectors.’
      • ‘Incoming galactic cosmic rays are scattered on magnetic irregularities in the solar wind, resulting in "solar modulation" of the galactic cosmic ray spectrum.’
      • ‘The modulation indicates a competing type of order that can also coexist with superconductivity.’
      • ‘One of the emerging branches of research focused on the galactic and solar origins of cosmic rays and the modulation of their flux by the interplanetary magnetic field.’
      • ‘So you know the amplitude of modulation, which tells you relative dimension of its two longer axes.’
      • ‘Several periods of the modulation are apparent, and they extend well outside the vortex-core region.’
      • ‘The images of field-induced modulations of charge and spin states obtained in the neutron-scattering experiments are stimulating.’
    2. 2.2Music A change from one key to another in a piece of music.
      ‘their bold approach to harmony and modulation’
      count noun ‘there is a beautiful modulation from B flat to G major’
      • ‘Most composers used difficult, left-field modulations, just not, usually, with keyboard music.’
      • ‘After such extreme modulation, an eight-bar link is necessary to steer the music back to A for the restatement of the A section.’
      • ‘The movement, despite an easygoing first theme, has its share of surprises, notably some startling modulations into keys somewhere around the planet Pluto.’
      • ‘The horizontal banding of the town hall invites us to note breaches in the anticipated pattern much as we register modulations of a familiar melody.’
      • ‘The finale, with its unexpected modulations, was played with panache and exciting vitality.’
      • ‘The modulations at the beginning of the second movement were entirely transparent.’
      • ‘The sudden modulation brings a galaxy of woodwind delights against muted, pointed strings.’
      • ‘She relishes the composer's "twisting voices" and impulsivity, with rhythmic surprises and abrupt modulations.’
      • ‘There is hardly a concerto movement in which so many modulations appear in such a short time.’
      • ‘Few jazz musicians have managed to fit so many modulations into such a short span.’
    3. 2.3 The process of changing from one form or condition into another.
      ‘the modulation from an oral to a written technology in ancient Greek civilization’
      count noun ‘great modulations of tempo’
      • ‘Each of the references to the cattle-killing prophecy in his narrative seems a modulation of the other.’
      • ‘The honeybee colony has many life-critical operations requiring precise modulation from the decisions and actions of its constituents.’
      • ‘This modulation of light contributed to the viewer's impression of both the pattern and the screenlike nature of the window.’
      • ‘After 1750, the modulation in her relationship with the king brought about a marked intensification of interest in the fabrication of her image.’
      • ‘The modulation from aggrieved femininity to fawning submissiveness in her wooing is masterfully handled.’
      • ‘The novel biochemical modulation by some foods and beverages is considered here.’
      • ‘The poem's shift from memory of childhood to anticipation of death is nicely attended by the modulation from olfactory to auditory.’
      • ‘Most of those characteristics probably originated early in its evolutionary history, and without much subsequent adaptive modulation.’
      • ‘This involved layers of translucent pigment patiently applied on top of one another, creating the brilliant glow and delicate modulation of color.’
      • ‘These houses were investigating new forms of construction and modulation of materials.’