Skip to main content
background

background

85 5.7
Unwanted signals or noise that make measurements unclear
  • noun
  • /ˈbækɡraʊnd/
  • Specialized
translation icon : ruido de fondo
  • The relentless humming is like the background of an old movie on a beat-up black-and-white TV.
  • background noise
  • background radiation
  • microwave background

Other people find that having some background noise helps cancel that out.

Examples

  • What's that noise in the background?

  • So out here we still have background microwave radiation somehow.

  • Other people find that having some background noise helps cancel that out.

  • The recognition system was moved to the van with the background condition of no noise.

    Academic text (1991)
  • A background model was trained from data of speakers in the background set.

    Academic text (2017)
  • Unfortunately, the precise content of these background rules is surprisingly difficult to pin down.

    Academic text (2017)
  • We're just trying to get enough background noise so that she doesn't really recognize that those fireworks are happening.

  • The readings were faint, difficult to separate from the high background radiation in the p175 area.

    Fiction book (1992)
  • The annihilation photons eventually cooled to form the background heat radiation that was discovered in 1965.

    Academic text (1992)
  • In scientific experiments, it is crucial to minimize background interference to ensure accurate measurements.

Synonyms

noise
vsbackground
  • Specialized
172 5.6

Extra sounds or information that hide the main message

is specifically extraneous signals or data that may interfere with measurements
background noise
vsbackground
  • Specialized
11 3.5

Unwanted sounds that make it hard to hear or record something

is broader, covering any interfering signals or data beyond just sounds
clutter
vsbackground
  • Specialized
6 8.1

Extra signals on a radar screen that hide real objects

is more general, covering extraneous data or interference across instruments
background signal
vsbackground
  • Specialized
7.5

An unwanted noise from other sources that gets in the way of a measurement

is any extraneous data or unwanted signals that may obscure the observed phenomenon
ground noise
vsbackground
  • Specialized
6.5

Unwanted background sound or electrical hiss that hides the true signal

is more general and can include separable interfering signals in measurements

Antonyms

signal
  • Specialized
991 3.8

A change in electric current or voltage that carries information in devices

Compounds

background noise
  • Specialized
11 3.5

Unwanted sounds that make it hard to hear or record something

background radiation
  • Specialized
5 4.1

Low-level energy from natural sources in the environment, like cosmic rays and rocks, not from the thing being tested

2 8.3

Faint microwaves left from the early universe that fill space

1 6.6

A weak glow of heat left from the Big Bang that fills the universe

A faint microwave glow left from the early universe that fills space nearly evenly

Information you already know from past experience that helps you understand new things

background level
  • Specialized
1 4.6

How loud unwanted sound is in a place or recording

screen background
  • Specialized
1 3.2

The part of a computer screen behind icons and windows

background processing
  • Specialized
4.1

Tasks the computer does while you use other programs

background signal
  • Specialized
7.5

An unwanted noise from other sources that gets in the way of a measurement

How Strong

overload
30 4.4
interference
  • Specialized
93 6.6
background noise
  • Specialized
11 3.5
background
  • Specialized
85 5.7
silence
660 2.0

Surface Forms

background singular
backgrounds plural

Morphology

background = back + ground (semi-transparent) = back + ground

Technical sense 'extraneous signals or noise' is a specialized metaphorical extension of the spatial/background idea and may not be immediately obvious without context.

Etymology

Background comes from back + ground, the idea of something 'behind' the main thing. That is why in science a background is the extra signals or 'extra noise' behind the main measurement that you need to remove.