OPV

OPV can mean:Offshore patrol vesselObservation post vehicleOral polio vaccine, usually the Sabin preparation.Original Promotional Videos (or sometimes Other People's Videos), unofficial music videos usually produced by anonymous fans, using the official audio version of a song but substituting alternative video footage.
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Noun
1. an oral poliovirus vaccine (containing live but weakened poliovirus) that is given to provide immunity to poliomyelitis
(synonym) Sabin vaccine, oral poliovirus vaccine, trivalent live oral poliomyelitis vaccine, TOPV
(hypernym) poliovirus vaccine

public offer of sale

IPO, Initial Public Offering, first offering to the public of a company's shares on the stock market

out patient visit; oral polio vaccine