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Related to altocumulus cloud: cirrostratus cloud, altostratus cloud, cumulonimbus cloud, Nimbostratus cloud, stratus cloud, Stratocumulus cloud
altocumulus cloud[¦al·tō¦kyüm·yə·ləs ′klau̇d]
A principal cloud type, white or gray or both white and gray in color; occurs as a layer or patch with a waved aspect, the elements of which appear as laminae, rounded masses, or rolls; frequently appears at different levels in a given sky. Abbreviated Ac.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.