pi

Noun

• an antiviral drug used against HIV; interrupts HIV replication by binding and blocking HIV protease; often used in combination with other drugs

• the 16th letter of the Greek alphabet

• the scientist in charge of an experiment or research project

• someone who can be employed as a detective to collect information

• the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...

Related words

• Synonyms: 
  protease inhibitor , PI , principal investigator , private detective , private eye , private investigator , operative , shamus , sherlock