What is "thc"

marijuana \marijuana\ n.

1. A strong-smelling Asian plant ( Cannabis sativa), also called hemp, from which a number of euphorogenic and halucinogenic drugs are prepared. The euphoric effect is predominently due to tetrahydrocannabinol ( THC). [Also spelled marihuana.]

   Syn: cannabis, ganja, pot, grass, marihuana, Cannabis sativa.

2. The dried leaves or the female flowers of the hemp plant, which is smoked or chewed to obtain a euphoric effect. The flowers usually have a higher concentration of the active ingredient, tetrahydrocannabinol.

   Syn: cannabis, ganja, pot, grass, marihuana, dope, weed, gage, sess, sens, smoke, skunk, Mary Jane.

tetrahydrocannabinol \tet`ra*hy`dro*can*nab"i*nol\ (t[e^]t`r[.a]*h[imac]`dr[-o]*k[a^]n*n[a^]b"[i^]n[add]l), n. (Chem. & Med.) A chemical substance ( C21H20O2) which is produced by the hemp plant (Cannabis sativa), and is the physiologically active agent of dried preparations of that plant, called variously marijuana, hashish, ganja, hemp, etc.; also called THC. It causes the euphoric effect for which the preparations are smoked or chewed. It is used in medicine in a purified form as an antiemetic (an antinausea agent), especially in conjunction with chemotherapy of cancer. It occurs primarily as the [Delta]1-3,4-trans isomer, also called [Delta]9-THC, with small amounts of the [Delta]6-3,4-trans isomer detectable at about 1%. It is a controlled substance, classified as a hallucinogen, and its possession and distribution is illegal in almost all states of the United States.
--MI11

active ingredient in marijuana and hashish, 1968, short for tetrahydrocannabinol (1940).

THC is tetrahydrocannabinol, the main active chemical compound in cannabis.

THC or ThC may also refer to:

T.H.C. was a trip hop band from Los Angeles, California, formed by producer/composer/keyboardist/bassist George Sarah in 1992. Vocalist and Lyricist Sarah Folkman joined the band official in 1997 though she was a guest collaborator since 1995.