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

THC

play
noun \ˌtē-(ˌ)āch-ˈsē\

Definition of THC

  1. :  either of two physiologically active isomers C21H30O2 from hemp plant resin; especially :  one that is the chief intoxicant in marijuana



Origin of thc

tetrahydrocannabinol


First Known Use: 1967


Medical Dictionary

THC

play
noun \ˌtē-ˌāch-ˈsē\

Medical Definition of THC

  1. :  either of two physiologically active isomers C21H30O2 that occur naturally in hemp plant resin or are synthetically prepared:a:  one that is the chief intoxicant in marijuana and is used medicinally—called also delta-9-tetrahydrocannabinol, delta-9-THC; see dronabinolb:  one that is present in marijuana only in minute quantities




Learn More about thc

  1. Medical Dictionary: Definition of "THC" Britannica.com: Encyclopedia article about "THC"


Seen and Heard

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

WORD OF THE DAY

February 13, 2016

a trying or distressing experience

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

2.2 pounds 100 pounds 16.96 pounds 196.5 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ