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| Window sill
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The shelf-like, flat exterior part at the bottom of a window. |
| Window stool
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The shelf-like, flat interior part at the bottom of a window. |
| Window wall
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Wall composed mostly of glass. |
| Window well
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Curved, corrugated steel insert use to keep moisture from basement windows that are below ground level. |
| Windowsill
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The bottom of the frame of wood supporting a window. |
| Windpower curve
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A graph representing the relationship between the power available from the wind and the wind speed. The power from the wind increases proportionally with the cube of the wind speed. |
| Windpower profile
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The change in the power available in the wind due to changes in the wind speed or velocity profile; the windpower profile is proportional to the cube of the wind speed profile. |
| Windrow
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A row of dust, dirt, and dry leaves that have been swept together. |
| Windshake
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Found in a log, the separation along the growth ring circumference, caused by wind stress during the growth period of the tree. |
| Windward
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Facing into the wind. |
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