spectrum

Examples

• All

• These light bulbs are LED and they have the correct spectrum of light for plant growth.

  Garden Answer

• Your eyes can only see energy in the visible light spectrum.

  Bickford Shmeckler's Cool Ideas (2006)

• But in the visible part of the spectrum, it all looks white.

• Only visible light, only a small portion of the spectrum is visible to us.

• Part of the light spectrum is the X-ray spectrum.

• There's a little bit now in the visible part of the spectrum, but it's red.

• To his surprise, beyond the red limit of the visible spectrum, the thermometer continued to receive heat.

  Academic text (1991)

• Because the signal has a broad, flat spectrum, it uses the transmitter power with almost ideal efficiency.

  Academic text (1999)

• The instrument displays a spectrum with peaks corresponding to the unique wavelengths of light that a material absorbs.

  Academic text (2011)

• The scientist observed the spectrum of colors created when light passed through the prism.

Synonyms

V

visible spectrum

vsspectrum

• Specialized

1 3.9

The colors that our eyes can see from red to violet

is broader and also refers to nonvisible radiation ranges arranged by energy

C

color spectrum

vsspectrum

• Specialized

1 4.0

A range of visible colors from red to violet when light passes through a prism

includes nonvisible radiation energies as well as visible colours

Compounds

E

electromagnetic spectrum

• Specialized

4 6.1

All types of light and energy waves from radio to gamma rays

V

visible spectrum

• Specialized

1 3.9

The colors that our eyes can see from red to violet

S

spectrum analysis

• Specialized

1 5.6

To study light from an object to find what it is made of

C

color spectrum

• Specialized

1 4.0

A range of visible colors from red to violet when light passes through a prism

A

absorption spectrum

• Specialized

1 7.1

Pattern of dark lines that show which parts of light a substance removes when light passes through it

R

radio spectrum

• Specialized

1 5.4

A range of radio waves used to send TV, phone, and Wi‑Fi signals

A

atomic spectrum

• Specialized

1 6.0

A pattern of lines in light made when atoms take in or give off energy, showing which element it is

S

spectrum line

• Specialized

1 7.7

A thin band of light at one exact color or wavelength

U

ultraviolet spectrum

• Specialized

1 5.3

A range of light waves shorter than visible light that can cause sunburn

E

emission spectrum

• Specialized

6.7

A set of bright lines or bands of light given off by something hot like a gas

A

acoustic spectrum

• Specialized

7.2

The range of high and low sounds a source makes, like a voice or instrument

A

action spectrum

• Specialized

8.2

A graph showing which colours of light cause a reaction

L

line spectrum

• Specialized

6.8

Light that shows bright or dark lines at certain colours

M

mass spectrum

• Specialized

6.8

A graph that shows how many charged particles have each mass

M

microwave spectrum

• Specialized

5.7

Part of invisible radio waves with higher frequencies that carry radar, satellite, and Wi-Fi signals

I

infrared spectrum

• Specialized

4.9

Range of light waves longer than visible light that we feel as heat

R

radio-frequency spectrum

• Specialized

4.5

A range of radio waves used to send signals for radio, TV and mobile phones

S

sound spectrum

• Specialized

6.7

The loudness of the high and low parts of a sound, for example a violin or flute

S

speech spectrum

• Specialized

5.2

The range of high and low sounds in a person's voice

How Wide

spectrum

46 5.4

spectrum line

• Specialized

1 7.7

Surface Forms

Etymology