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Anvil Cloud |
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anvil cloud [′an·vəl ‚klau̇d]
(meteorology) The popular name given to a cumulonimbus capillatus cloud, a thunderhead whose upper portion spreads in the form of an anvil with a fibrous or smooth aspect; it also refers to such an upper portion alone when it persists beyond the parent cloud. Anvil Cloud a cumulonimbus cloud whose top part is flattened out in the shape of an anvil of solid or fibrous structure and has a bright white color in sunlight. The anvil cloud consists of ice crystals and forms when a cumulonimbus cloud reaches a level with a temperature on the order of —10°C and lower. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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