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English Language Learners Definition of noise: a loud or unpleasant sound: a sound that someone or something makes. technical: unwanted electronic signals that harm the quality of something (such as a radio or television broadcast or a digital photograph) See the full definition for noise in the English Language Learners Dictionary.


Noise is unwanted sound judged to be unpleasant, loud or disruptive to hearing. From a physics standpoint, noise is indistinguishable from sound, as both are vibrations through a medium, such as air or water. The difference arises when the brain receives and perceives a sound.


Noise, clamor, din, hubbub, racket refer to unmusical or confused sounds. Noise is the general word and is applied equally to soft or loud, confused or inharmonious sounds: street noises.


Noise is the least specific: deafened by the noise in the subway. A din is a jumble of loud, usually discordant sounds: the din of the factory. Racket is loud, distressing noise: the racket made by trucks rolling along cobblestone streets.


Definition of noise - a sound, especially one that is loud or unpleasant or that causes disturbance, irregular fluctuations that accompany a transmitted


Your noise might be another person's lullaby. A car siren will wake you up, but some noises can be soothing. "White noise" is an electronically generated sound often used to help someone fall asleep.


noise definition: 1. a sound or sounds, especially when it is unwanted, unpleasant, or loud: 2. any bad change in a signal, especially in a signal produced by an electronic device: 3. unexplained or unexpected information in a sample that is not useful and that can be ignored: . Learn more.


noise Electronics Random variation in signals of the electromagnetic spectrum that carries no useful information from the source. Imaging A term defined in MRI as an undesirable background signal interference or other disturbance, which affects image quality.


3 information or opinion that is widely disseminated without any authority or confirmation of accuracy . there's been a lot of noise that the stock is ready to skyrocket, but I'll believe it when I see it


Noise is a loud or unpleasant sound. There was too much noise in the room and he needed peace. A noise is a sound that someone or something makes. Sir Gerald made a small noise in his throat. ...birdsong and other animal noises. She'd been working in her room till a noise had disturbed her ...