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radiation

radiation

7 4.8
Spreading outward from a central point, like heat from a fire
  • noun
  • /ˌreɪdiˈeɪʃən/
translation icon : radiación
  • In the lab, scientists measured the radiation emitted by the heated materials as it spread outward.
  • thermal radiation
  • radiation of heat
  • heat transfer by radiation

Examples

  • How is this heat load dissipated each day through radiation, moist convection, thermal conduction, and subsurface transport?

    Blog text (16)
  • And then beyond that all radiation is rejected.

  • So if there was only radiation, it would go like that.

  • Establish the site of the pain; is there radiation or spreading pain?

    Academic text (2011)
  • But it's bad when it comes to infrared light, also known as thermal radiation or heat.

    Academic text (2002)
  • And the radiation that's missing there is going to be the radiation that hits the earth.

  • Since radioactive particles travel in a straight line... this tunnel will prevent the spread of radiation.

  • All of the skin, outer skin of the building, converts solar-radiation into electrical energy.

  • The patient was treated with concurrent chemotherapy and intensity-modulated radiation therapy.

    Academic text (2008)
  • Heat transfer and energy-efficient houses: Conduction, convection, and radiation as applied to passive heating and cooling systems.

    Academic text (2009)

Synonyms

emission
vsradiation
198 4.6

A substance like gas or smoke that is released into the air

describes the spreading process rather than the released material
emanation
vsradiation
5 8.3

Something that comes out from a place, like gas, light or a smell

is the general process of something spreading outward from a central source
propagation
vsradiation
  • Specialized
3 6.3

Waves like light or sound moving through a material like air

focuses on spreading outward from a central source in all directions
radiant energy
vsradiation
  • Specialized
1 5.0

Power that travels through space as light or radio waves

is a broader spreading process not limited to electromagnetic energy
emittance
vsradiation
  • Specialized
1 8.2

A number that shows how well a surface gives off heat as radiation

focuses on the outward spreading action itself from a central point
irradiation
vsradiation
  • Specialized
1 8.8

The spread of pain or nerve signals beyond their original area

is the general outward spreading process not limited to bodily effects
pervasion
vsradiation
1 8.3

The spread of something through a place until it is present everywhere

involves outward spreading from a central source rather than general presence throughout

Compounds

solar radiation
  • Specialized
8 3.5

Light and heat from the Sun that reach the Earth

radiation therapy
  • Specialized
7 3.9

A treatment that uses strong beams of energy to kill cancer cells

7 4.2

Waves of energy like radio, visible light, and X-rays that move through space

gamma radiation
  • Specialized
7 5.5

Very strong energy rays released by radioactive materials

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

infrared radiation
  • Specialized
4 4.2

A type of light we cannot see that warm things give off

ultraviolet radiation
  • Specialized
4 4.1

Invisible light from the sun that can burn skin

radiation sickness
  • Specialized
3 5.7

An illness after a large amount of harmful radiation that causes nausea, vomiting, and hair loss

ionizing radiation
  • Specialized
3 6.5

Rays strong enough to take electrons away from atoms

cosmic radiation
  • Specialized
2 6.6

High-energy rays from space that reach Earth

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

neutron radiation
  • Specialized
1 5.7

A type of radiation made of tiny uncharged particles from atoms that can harm cells

radiation field
  • Specialized
1 5.6

The area around a source where energy like light spreads out

beta radiation
  • Specialized
1 6.3

A type of energy made of small fast particles released by radioactive materials

black-body radiation
  • Specialized
1 7.6

Light and heat given off by an object that absorbs all light, changing colour with temperature

blackbody radiation
  • Specialized
1 8.5

The light and heat given off by a perfect object that absorbs all light, depending only on its temperature

radiation pattern
  • Specialized
1 6.1

The way an antenna sends out signal strength in different directions

radiation pressure
  • Specialized
1 7.1

A very small push that light gives to a surface when it hits it

particulate radiation
  • Specialized
1 8.1

A stream of very small bits of matter, like atoms, that carries energy and can pass through things

1 6.9

A ring of charged particles held by Earth's magnetic field that surrounds the planet

9.9

A flow of very small particles from radioactive sources that can pass through matter

A very small push on a surface caused by particles in a beam of light

electron radiation
  • Specialized
6.7

A radioactive material sends out fast electrons during decay

8.3

A force from sound waves that pushes on a surface in the way the waves move

actinic radiation
  • Specialized
8.6

Light that causes chemical changes in materials, such as ultraviolet or visible light

adaptive radiation
  • Specialized
9.3

One species changes into many species that live in different places or do different jobs in nature

alpha radiation
  • Specialized
6.1

Radiation made of heavy particles that radioactive materials send out

7.0

Waves of energy like light or X-rays that carry energy not matter

non-radiation
  • Specialized
6.4

Not giving off harmful rays like X-rays

non-radiation
  • Specialized
6.6

A condition in which no harmful rays are present

radiation diagram
  • Specialized
7.6

A picture that shows how an antenna sends a signal in different directions

radiation pyrometer
  • Specialized
8.9

A tool that measures temperature of hot objects without touching them

radiation syndrome
  • Specialized
6.1

An illness you get from very strong harmful rays that makes you vomit, lose hair, and can cause death

radio radiation
  • Specialized
4.0

Waves that carry sound and pictures through the air, like radio and TV signals

optic radiation
  • Specialized
8.4

A group of nerve fibers that carries sight signals to the part of the brain that sees

8.8

A rule that shows how much light or heat a perfect object gives at each color for a given temperature

visible radiation
  • Specialized
3.5

Light that human eyes can see

X-radiation
  • Specialized
5.0

High-energy rays used to make images inside the body

How Wide

diffusion
5 5.8
pervasion
1 8.3
radiation
7 4.8
emission
57 3.5
emanation
5 8.3

Surface Forms

radiation singular
radiations plural

Morphology

radiation = radiate (transparent) = radiate + ion

Regular nominalization of the verb capturing the process of spreading outward from a source.

Etymology

Radiation comes from the Latin radius, meaning 'ray' or 'spoke', and gives the image of lines moving out from a center. That's why radiation also means the process of spreading outward in all directions, like light rays from a bulb.