radiation

S2 W2

BrE /ˈreɪ.di.ə.ʃn/ AmE /ˈreɪ.di.ə.ʃn/

noun en → es

1 RADIOACTIVE MATTER [uncountable] B2

the rays or waves given off by radioactive substances

radiación, rayos radiactivos

Collocations radiation exposure · radiation therapy

  • The patient is undergoing radiation treatment.

    El paciente está recibiendo tratamiento de radiación.

2 ELECTROMAGNETIC WAVES [uncountable] C1

a form of energy that travels through space as waves or particles, such as light and radio waves

radiación electromagnética, ondas

Collocations electromagnetic radiation · radio wave radiation

  • The sun emits a wide range of electromagnetic radiation.

    El sol emite una amplia gama de radiación electromagnética.

3 HEAT [uncountable] C1

the process by which heat is transferred from a hotter object to a cooler one

radiación térmica, calor

Collocations thermal radiation · heat radiation

  • The heat from the sun is transferred to Earth by radiation.

    El calor del sol se transfiere a la Tierra por radiación.

4 TELECOMMUNICATIONS [uncountable] C1

the transmission of signals or information through space by means of electromagnetic waves

radiocomunicación, transmisión de señales

Collocations radio communication · wireless radiation

  • The signal was transmitted by radio waves.

    La señal fue transmitida por ondas de radio.

5 MEDICINE [uncountable] C1

the use of radiation to treat diseases, especially cancer

radioterapia, tratamiento con radiación

Collocations cancer treatment with radiation · radiotherapy

  • She is undergoing radiotherapy for her cancer.

    Ella está recibiendo radioterapia para su cáncer.

6 ASTRONOMY [uncountable] C1

the study of radiation from celestial objects to understand their properties and behavior

radiación astronómica, estudio de radiación

Collocations astronomical radiation · celestial radiation

  • Scientists study the radiation from distant stars.

    Los científicos estudian la radiación de estrellas distantes.

7 ENVIRONMENT [uncountable] C1

the harmful effects of radiation on living things and the environment

contaminación por radiación, daño ambiental

Collocations radiation contamination · environmental radiation

  • The area is contaminated with radioactive waste.

    La zona está contaminada con residuos radiactivos.

8 TECHNOLOGY [uncountable] C1

the use of radiation in technological devices and systems

radiación tecnológica, uso de radiación

Collocations technological radiation · radiation technology

  • The device uses radiation to detect objects.

    El dispositivo utiliza radiación para detectar objetos.