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thundercloud |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Thundercloud \Thun"der*cloud`\, n. A cloud charged with electricity, and producing lightning and thunder. From WordNet r 1.6 [wn]: thundercloud n : a dark cloud of great vertical extent charged with electricity; associated with thunderstorms [syn: {cumulonimbus}, {cumulonimbus cloud}]
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