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tetrahydrocannabinol n. 四氢大麻酚(大麻中的主要有毒致幻成份) 四氢大麻酚(大麻中的主要有毒致幻成份) tetrahydrocannabinol n 1: psychoactive substance present in marijuana [ synonym: { tetrahydrocannabinol}, { 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}. [ WordNet 1. 5] 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. [ WordNet 1. 5]
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 or distribution is illegal in almost all states of the United States. -- MI11 [ PJC]
Cannabis \ Can" na* bis\, prop. n. [ L., hemp. See { Canvas}.] 1. ( Bot.) A genus of a single species belonging to the order { Uricace[ ae]}; hemp. [ 1913 Webster] 2. The Indian hemp plant plant { Cannabis sativa} syn. { Cannabis Indica}. See { Cannabis Indica}, below. [ PJC] { Cannabis Indica}, the Indian hemp, now considered a variety of the common hemp ({ Cannabis sativa}), originating in Asia but now grown widely around the world. It can be formed into a tough fiber that is used to make rope and tough fabric. The dried leaves and female flowers are smoked or chewed by people to produce a euphoric or hallucinogenic effect, caused mainly by the substance { tetrahydrocannabinol} ( THC) contained in it. The THC- containing products of Cannabis are classified as a controlled substance, and posession and sale are illegal in most states of the United States. Once classified as a narcotic, the plant is now more commonly referred to in the category of euphoric or hallucinogenic agents. [ 1913 Webster PJC]
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