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The ionosphere interacts strongly with the sun, which explains the layer's name: its atoms and molecules are ionized (have had electrons stripped away) by solar radiation.—Mike Wall, Space.com, 25 July 2025 The researchers noted that communities downstream from Coldwater Creek had potentially been exposed to the ionizing radiation during recreational activities, such as playing in the creek, and residential activities, like breathing in dust suspended from the soil when gardening.—Angelica Stabile, FOXNews.com, 22 July 2025 When a hazard, such as ultraviolet light, ionizing radiation or certain chemicals, damages DNA, the cell needs to respond at breakneck speed.—Dan Samorodnitsky, Quanta Magazine, 14 July 2025 His handheld radiation monitor detected ionizing radiation that was alarmingly high, though not lethal, and the following day he was diagnosed with radiation burns on his head and hand.—Matt Zoller Seitz, Vulture, 30 June 2025 See All Example Sentences for ionize
Word History
Etymology
ion + -ize, after German ionisiren (now ionisieren) or French ioniser
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