Definition of STP
(Entry 1 of 2)
: a hallucinogenic drug chemically related to mescaline and amphetamine
STP
abbreviationDefinition of STP (Entry 2 of 2)
1
shielded twisted pair
2
standard temperature and pressure
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Merriam-Webster unabridged
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Time Traveler for STP
The first known use of STP was in 1967
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