1. actinic radiation

noun. Electromagnetic radiation that can produce photochemical reactions.
Synonyms
electromagnetic radiation ultraviolet light UV infrared emission nonparticulate radiation electromagnetic wave ultraviolet illumination light actinic ray infrared radiation visible radiation ultraviolet infrared ultraviolet radiation electromagnetic spectrum infrared light visible light
Antonyms
dark dull bright dullness light
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2. X-radiation

noun. Obtaining images by the use of X rays.
Synonyms
computed tomography computerized axial tomography computed axial tomography X-raying CT computerized tomography CAT imaging tomography

3. X-radiation

noun. Electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target.
Synonyms
X-ray electromagnetic radiation X ray nonparticulate radiation electromagnetic wave ionizing radiation roentgen ray

4. radiation

noun. (ˌreɪdiːˈeɪʃən) Energy that is radiated or transmitted in the form of rays or waves or particles.
Synonyms
electromagnetic radiation free energy solar radiation nonparticulate radiation electromagnetic wave energy ionizing radiation cosmic radiation
Antonyms
stay in place centralization fold cross concentration
Etymology
radiation (English)
radiatio (Latin)

5. radiation

noun. (ˌreɪdiːˈeɪʃən) The act of spreading outward from a central source.
Synonyms
emanation bombardment emission
Antonyms
activation sink source peristalsis
Etymology
radiation (English)
radiatio (Latin)

6. radiation

noun. (ˌreɪdiːˈeɪʃən) The spread of a group of organisms into new habitats.
Synonyms
activity spread adaptive radiation spreading natural action natural process action
Antonyms
dormant inaction passive active gather
Etymology
radiation (English)
radiatio (Latin)

7. radiation

noun. (ˌreɪdiːˈeɪʃən) (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance.
Synonyms
irradiation phototherapy radium therapy therapy Curietherapy radiation therapy radiotherapy X-ray therapy actinotherapy
Antonyms
ill health assembly discontinuation inactivity discontinuance
Etymology
radiation (English)
radiatio (Latin)

8. radiation

noun. (ˌreɪdiːˈeɪʃən) Syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours.
Synonyms
radiation sickness radiation syndrome syndrome
Antonyms
stabilisation stabilization defense
Etymology
radiation (English)
radiatio (Latin)

9. radiation

noun. (ˌreɪdiːˈeɪʃən) A radial arrangement of nerve fibers connecting different parts of the brain.
Synonyms
neural structure
Antonyms
anastalsis inactiveness
Etymology
radiation (English)
radiatio (Latin)

10. radiation

noun. (ˌreɪdiːˈeɪʃən) The spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay.
Synonyms
emission radioactivity particulate radiation corpuscular radiation
Antonyms
stand still concentrated unextended uncover unprepared
Etymology
radiation (English)
radiatio (Latin)
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