The action of light rain falling in small drops, or an adjective describing something currently drizzling.
Present participle of 'drizzle,' from Middle Dutch 'drieselen.' The '-ing' suffix creates a continuous or habitual form of the verb.
Drizzling is so common as a verb that it barely registers as weather—'It's drizzling outside' might not even prompt someone to bring an umbrella, even though they'll be damp within an hour. That's the insidious nature of drizzle!
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