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Definitions

radiation

[rey-dee-ey-shuhn] / ˌreɪ diˈeɪ ʃən /




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Space weathering, caused by solar wind particles, micrometeorite impacts, and cosmic radiation, slowly darkens exposed material.

From Science Daily • Apr. 8, 2026

Fuel shortages are keeping doctors and nurses away from work and hospitals are canceling surgeries and delaying vaccines for children and life-saving treatments such as kidney dialysis and radiation therapy.

From Los Angeles Times • Apr. 1, 2026

The amount of radiation used is small, akin to a mammogram, and the scans typically don’t need to be repeated.

From The Wall Street Journal • Mar. 30, 2026

They'll have to work out how to generate power and build habitats to protect people from extreme temperatures as well as dangerous space radiation.

From BBC • Mar. 29, 2026

Most of the radiation that surrounds us lacks the energy to do us harm.

From "Meltdown" by Deirdre Langeland