The act of making a continuous whirring or vibrating sound; present participle of 'churr'; also used as an adjective describing ongoing whirring sounds.
From 'churr' with the addition of the '-ing' suffix to create the present participle. The gerund form allows the word to function as both verb and noun, describing both the action and the sound itself simultaneously.
Many animals have 'churring' as their signature sound—from insects to birds to frogs—and naturalists have all adopted the word because it's the perfect onomatopoetic match for that rapidly vibrating, almost electrical-sounding noise!
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