单词	tetrahydrocannabinol
释义	tetrahydrocannabinol /ˌtɛtrəˌhʌɪdrə(ʊ)ˈkanəbɪnɒl / /ˌtɛtrəˌhʌɪdrə(ʊ)kəˈnabɪnɒl/ noun [mass noun] Chemistry A crystalline compound that is the main active ingredient of cannabis. Chemical formula: C21H30O2. The drug's active ingredient, tetrahydrocannabinol, will be delivered not by smoking, but through such mechanisms as a spray aimed under the tongue.... The product contains the cannabis extract tetrahydrocannabinol and cannabidiol. We considered urinary screening for drugs as positive above a concentration of 1000 ng/ml of urine for amphetamines, 300 ng/ml for cocaine and opiates, and 50 ng/ml of acid tetrahydrocannabinol for cannabis.
随便看	refraction refractional refraction circle refraction error refraction index refractionist refraction profiling refraction shooting refractious refractive refractive error refractive index refractively refractiveness refractive power refractometer refractometric refractometrically refractometry refractor refractorily refractoriness refractory refractory period refracture

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