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Pi
01
an antiviral drug used against HIV; interrupts HIV replication by binding and blocking HIV protease; often used in combination with other drugs
02
the 16th letter of the Greek alphabet
03
the scientist in charge of an experiment or research project
04
a mathematical constant representing the ratio of a circle's circumference to its diameter, approximately equal to 3.14159
Examples
Trigonometric functions involving angles in radians often yield results containing multiples of pi.
