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| cas·ing [ káyssing ] (plural cas·ings) |
noun |
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| Definition: |
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1. outer covering: an outer covering, e.g. the sheath of an electrical cable or the skin of a sausage
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2. frame for door or window: a frame containing a door, window, or stairway
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3. liner pipe in well: a liner pipe or tube in a water, oil, or gas well
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