Photovoltaics - technology that produces electric power directly from the sunlight. 'Photo' refers to light and 'voltaic' to voltage.
Found on http://www.encyclo.co.uk/local/20715
PV: Stands for polycythemia vera, a condition characterized by overproduction (proliferation) of red blood cells due to bone marrow disease (myeloproferative disorder). PV tends to evolve into acute leukemia or a condition with the marrow replaced by scar tissue (myelofibrosis) For there to be PV, there must be polycythemia which exists when the he... Found on http://www.medterms.com/script/main/art.asp?articlekey=7269