| NOUN | quantity | pi | the ratio of the circumference to the diameter of a circle |
|---|---|---|---|
| person | PI, private detective, private eye, private investigator, operative, shamus, sherlock | someone who can be employed as a detective to collect information | |
| person | PI, principal investigator | the scientist in charge of an experiment / experiment or research project | |
| communication | pi | the 16th letter of the Greek alphabet | |
| artifact | PI, protease inhibitor | an antiviral drug used against HIV |
| Sounds | pay' | |
|---|---|---|
| Rhymes | magpie ... spy: 7 rhymes with pay... | |
| Meaning | The ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846... | |
|---|---|---|
| Broader | transcendental number | An irrational number that is not algebraic |
| Spanish | pi | |
| Catalan | pi | |
| Meaning | someone who can be employed as a detective to collect information. | |
|---|---|---|
| Synonyms | private detective, private eye, private investigator, operative, shamus, sherlock | |
| Narrower | hotel detective, house detective, house dick | A private detective employed by a hotel or retail store |
| inquiry agent | A private detective | |
| store detective | A private detective employed by a merchant to stop pilferage | |
| Broader | detective | An investigator / investigator engaged or employed in obtaining information not easily available to the public |
| Spanish | agente, detective, detective privado, investigador privado | |
| Catalan | agent, detectiu, detectiu privat, investigador privat | |
| Meaning | The scientist in charge of an experiment / experiment or research project. | |
|---|---|---|
| Synonym | principal investigator | |
| Broader | scientist | A person with advanced knowledge of one or more sciences |
| Spanish | investigador principal | |
| Catalan | investigador principal | |
| Meaning | The 16th letter of the Greek alphabet. | |
|---|---|---|
| Member of | Greek alphabet | The alphabet used by ancient Greeks |
| Broader | letter, letter of the alphabet, alphabetic character | The conventional characters of the alphabet used to represent speech |
| Spanish | pi | |
| Catalan | pi | |
| Meaning | An antiviral drug used against HIV; interrupts HIV replication by binding and blocking HIV protease; often used in combination with other drugs. | |
|---|---|---|
| Synonym | protease inhibitor | |
| Part of | drug cocktail, highly active antiretroviral therapy, HAART | A combination of protease inhibitors taken with reverse transcriptase inhibitors |
| Narrower | indinavir, Crixivan | A protease inhibitor (trade name Crixivan) used for treating HIV |
| nelfinavir, Viracept | A protease inhibitor (trade name Viracept) used in treating HIV usually in combination with other drugs | |
| ritonavir, Norvir | A protease inhibitor (trade name Norvir) used in treating HIV | |
| saquinavir, Invirase | A weak protease inhibitor (trade name Invirase) used in treating HIV | |
| Broader | antiviral, antiviral agent, antiviral drug | Any drug that destroys viruses |
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