STP
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.1STP
noun \ˌes-ˌtē-ˈpē\Definition of STP
: a hallucinogenic drug chemically related to mescaline and amphetamine
Origin of STP
probably from STP, a trademark for a motor fuel additive
First Known Use: 1967
2STP
abbreviationDefinition of STP
1
shielded twisted pair
2
standard temperature and pressure
Seen & Heard 
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