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organic compound in which halogen atoms have been substituted for hydrogen atoms in an alkane

perennial or biennial herb cultivated for its delicate usually blue flowers

perennial or biennial herb cultivated for its delicate usually blue flowers

a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)

a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)