deg·ra·da·tion 
(dĕg′rə-dāshən)
(dĕg′rə-dāshən)n.
1. The act or process of degrading.
2. The state of being degraded; degeneration.
3. A decline to a lower condition, quality, or level.
4. Geology A general lowering of the earth's surface by erosion or weathering.
5. Chemistry Decomposition of a compound, especially complex substances such as polymers and proteins, by stages, exhibiting well-defined intermediate products.
degra·da′tive adj.
- vanadic acid
- vanadinite
- vanadium
- vanadium pentoxide
- vanadium steel
- Van Allen belt
- vanaspati
- Vanbrugh
- Van Buren
- vancomycin
- Vancouver
- Vancouver
- Vancouver Island
- Vandal
- Vandalic
- vandalism
- vandalistic
- vandalization
- vandalize
- Van de Graaff generator
- Vanderbilt
- Van Der Rohe
- van der Waals
- van der Waals equation
- van der Waals force