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declinometer
declivitous
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decompression

de·com·pres·sion [ d kəm présh'n ]


noun 
Definition:
 
1. pressure decrease: a decrease in surrounding or inherent pressure, especially the controlled decrease in pressure that divers undergo to prevent decompression sickness

2. comput computer data expansion: the expansion to full size of compressed electronic data

3. surgery surgery to reduce pressure in organ: a surgical procedure to reduce pressure in an organ or part of the body caused, e.g. by fluid on the brain, or to reduce the pressure of tissues on a nerve

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