| Van, Lake ... Vanvitelli, Luigi |
| | - Van, Lake
- lake, largest body of water in Turkey and the second largest in the Middle East. The lake is located in the region of eastern Anatolia near the border of Iran. It covers an area of 1,434 square miles (3,713 square ...
- vanadate mineral
- any of the many naturally occurring compounds of vanadium (V), oxygen (O), and various metals; most of these minerals are rare, having crystallized under very restricted conditions. Although vanadinite occasionally is mined as a ...
- vanadic anhydride
- vanadium pentoxide, a compound of vanadium and oxygen widely used as an oxidation catalyst, as in the oxidation of unburned hydrocarbons in automobile exhaust (see vanadium).
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