Synonyms for pi

Noun

1. pi, 3.14159265358979323846..., irrational number

usage: the ratio of the circumference to the diameter of a circle

2. private detective, PI, private eye, private investigator, operative, shamus, sherlock, detective

usage: someone who can be employed as a detective to collect information

3. principal investigator, PI, scientist, man of science

usage: the scientist in charge of an experiment or research project

4. pi, letter, letter of the alphabet, alphabetic character

usage: the 16th letter of the Greek alphabet

5. protease inhibitor, PI, antiviral, antiviral agent, antiviral drug

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