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cumuliform cloud[′kyü·myə·lə‚fȯrm ‚klau̇d]
A fundamental cloud type, showing vertical development in the form of rising mounds, domes, or towers.
A convective cloud with vertical development, formed by rising air currents in unstable air. These clouds are cauliflower-like in appearance with appreciable vertical development and dome-shaped upper surface. Usually cumuliform clouds are separate and distinct from each other. They also have flat bases and rarely cover the entire sky. Precipitation from cumuliform clouds is usually of a showery nature. They are extremely turbulent and the best height to penetrate them is at two-thirds of the cloud height. See cumulus and cumulonimbus.