Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary
1

STP

play
noun \ˌes-ˌtē-ˈpē\

Definition of STP

  1. :  a hallucinogenic drug chemically related to mescaline and amphetamine



Origin and Etymology of stp

probably from STP, a trademark for a motor fuel additive


First Known Use: 1967


2

STP

abbreviation

Definition of STP

  1. 1 shielded twisted pair

  2. 2 standard temperature and pressure




Medical Dictionary

STP

play
noun \ˌes-ˌtē-ˈpē\

Medical Definition of STP

  1. :  a hallucinogenic drug chemically related to mescaline and amphetamine—called also DOM




STP

abbreviation

Medical Definition of STP

  1. standard temperature and pressure




Learn More about stp

  1. Medical Dictionary: Definition of STP


Seen and Heard

What made you want to look up STP? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to destroy or remove completely

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

two-chairs-on-a-pier-by-the-ocean-in-summer

Which of the following words means “of or relating to summer”?

estival vernal hiemal brumal
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ