radiation
word
Definition
Radiation is energy that travels through space or through a material, often as waves or tiny particles. It can come from the sun, medical equipment, or radioactive substances, and some types can be harmful in high amounts.
Usage & Nuances
Often used in science, medicine, and news reports. Common collocations include 'radiation exposure', 'radiation therapy', and 'background radiation'. Do not confuse it with 'radioactivity': radiation is the energy itself, while radioactivity is the property of a substance that gives off radiation.
Example Sentences
Too much radiation can be dangerous.
basic
The doctor explained the radiation treatment.
basic
The sun gives off radiation every day.
basic
They checked the area for radiation after the accident.
natural
I was worried about radiation exposure during the scan, but the nurse said it was low.
natural
People hear the word radiation and immediately think of something scary.
natural