tetrahydrocannabinol is the main Psychoactive ingredient in marijuana(Cannibis/Weed)

it is usualy abbreviated to THC

its chemical name (for those who care..not many) is Δ9-tetrahydrocannabinol (Δ9 =Delta 9)

Pros and cons of THC

Pro
:its the safest drug there is

:there have been no reported deaths from it

:it can be effectively used as a medicine for many alements

:is is not addictive

:its realy cheap compared to all other drugs

:it get you high as a kite

Cons
:it may cause short term memory loss

:in rare cases it can give you a lack of motivation

:munchies weight gain
ooh got some weed good old THC

(Nerd catches teens smoking weed and says)
tetrahydrocannabinol why thats illegal
by InfoBank February 23, 2009

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Top Definition
Tetrahydrocannabinol (THC), is the main psychoactive ingredient in the Cannabis Sativa plant that gets a user 'High'.
It's scientific name is Δ9-tetrahydrocannabinol (delta-9-tetrahydrocannabinol), Δ¹-tetrahydrocannabinol (using an older numbering scheme), or dronabinol, is the main psychoactive substance found in the Cannabis plant. It was isolated by Raphael Mechoulam and Yechiel Gaoni from the Weizmann Institute in Rehovot, Israel in 1964. In pure form it is a glassy solid when cold and becomes viscous and sticky if warmed. THC has a very low solubility in water, but a good solubility in most organic solvents such as pure ethanol or hexane.
Scientist: Man, that pot had a high tetrahydrocannabinol potency!
by hdsk August 10, 2006

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The main psychoactive ingredient in happiness.
Person 1: Hey doesn't weed have Tetrahydrocannabinol in it?

Person 2: Oh, you mean doesn't weed have, happiness, in it.
by The Pooper Scooper February 21, 2015

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the spirit of Gaia
tfffff, wow Gaia really blessed that bud
by guevara April 19, 2004

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