VISCERA   :   

The internal organs of animals and humans especially the thorax and abdominal region is known as viscera.

VISUAL CORTEX   :   

One of five regions of the cerebrum processing visual information in animal brains.

VITAMINS   :   

The organic compound that is required as an nutrient by an organism and is often obtained from its diet is known as vitamins. The deficiency of vitamins can cause many diseases and illness in the organism.

VOIP   :   

It is the network that allows real time conversation by sending digital voice information in packet form over the Internet . It does not use the the traditional circuit committed protocol that is used by public telephone networks. VoIP stands for Voice Over Internet Protocol.

VOLATILE   :   

Compounds with low melting temperatures, such as hydrogen, helium, water, ammonia, carbon dioxide and methane.

VOLATILE ORGANIC COMPOUNDS   :   

Organic chemical compounds that have high enough vapour pressures under normal conditions to significantly vaporize and enter the atmosphere.

VOLCANO   :   

(1) A vent in the planetary surface through which magma and associated gases and ash erupt. (2) The form or structure produced by the erupted materials.