| caapi | A hallucinogenic preparation obtained from Banisteria caapi (family Malpighaceae), a South American jungle vine; contains harmine and other psychotomimetic principles. Synonym: ayahuasca. (05 Mar 2000) |
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| CAAT box | <molecular biology> Nucleotide sequence in many eukaryotic promoters usually about 75bp upstream of the start of transcription. Binds NF1. (18 Nov 1997) |