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radiation

radiation

1 7.9
Nerve paths that spread from one part of the brain to another
  • noun
  • /ˌreɪdiˈeɪʃən/
  • Specialized
translation icon : radiación óptica
  • An early systolic musical murmur is best heard at the apex with radiation to her left axilla.

Examples

  • A tunneling effect occurs as the blood drains from the parietal lobes and causes ischemia of the optic radiations.

    Academic text (1994)
  • Some men can present with inflammation of the bowel or radiation cystitis, both of which may mean frequent toilet breaks and/or flexible attendance management, offering temporary part-time working or flexible hours where this is possible.

    Academic text (2010)
  • Established phasing methods face two problems: the sensitivity of samples to radiation damage and the difficulty of incorporating foreign atoms into samples.

    Academic text (2006)
  • And these fibers here for Meyer's loop are part of the optic radiations, the type that represents the upper visual field.

  • The doctor explained how the radiation in the brain connects different areas important for vision.

  • Researchers studied the radiation of nerve fibers that convey signals between the brain and the body.

  • Understanding the radiation patterns of neural pathways can help improve treatments for brain injuries.

Synonyms

pathway
vsradiation
  • Specialized
56 6.3

A route in the brain that carries nerve signals

is radial in layout connecting various areas instead of a single path
neural structure
vsradiation
  • Specialized
1 5.7

A part of the nervous system that carries signals, like a nerve or brain area

is a specific radial fibre arrangement connecting brain regions not just any structure
nerve pathway
vsradiation
  • Specialized
1 5.3

A group of long cells that carry signals between body parts and the brain

is arranged radially to link parts rather than following one set route
radiatio optica
vsradiation
  • Specialized
9.9

A bundle of nerve fibers that carries signals from the eye area to the visual part of the brain

is arranged radially to connect multiple brain regions rather than only carrying vision
optic radiation
vsradiation
  • Specialized
8.4

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

is arranged radially to connect multiple brain regions rather than only carrying vision

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

Surface Forms

radiation singular
radiations plural

Morphology

radiation = radiate (semi-transparent) = radiate + ion

Formed from 'radiate' but used in a specialized anatomical sense (radial arrangement of fibers) that may not be obvious to B1 learners.

Etymology

Radiation comes from the Latin radius, meaning 'ray' or 'spoke', and helps us picture things that fan out from a center. In the brain, terms like 'optic radiation' name nerve fibres that spread out like 'rays' connecting different parts, so the root fits this arrangement.