PIV

PIV may refer to:

Language[edit]

Plena Ilustrita Vortaro de Esperanto, a dictionary of Esperanto
Vaeakau-Taumako (ISO 639 language code), a Polynesian language

Science and technology[edit]

Particle image velocimetry, an optical method of flow visualization
Peak inverse voltage, in electronics
Pentium 4 microprocessor, produced by Intel ("IV" is Roman numeral for "4")
Personal Identity Verification, as specified by the US federal government standard FIPS 201
Positive input ventilation, a type of ventilation for buildings
Post indicator valve, a shut-off valve for otherwise underground pipes, notably for fire sprinklers; see Glossary of firefighting equipment#P
Pivaloyl protecting group (Piv), a protecting group in chemistry
P = IV, the formula describing power in terms of current and voltage in electrical power

Medicine[edit]

Parainfluenza virus, single-stranded RNA viruses belonging to the Paramyxoviridae family
Peripheral intravenous catheter (PIVC), in medicine
Posterior interventricular artery, an artery supplying the heart

Other uses[edit]

Penis in vagina, a type of sexual intercourse

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