n. (Chem.) a series of acyclic non-aromatic saturated hydrocarbons with the general formula CnH(2n+2). They include methane, ethane, propane, butane, and the paraffins. Syn. -- methane series, alkane series, paraffin [ WordNet 1.5 PC ]
n. [ Dim. of Sp. alcana, alheña, in which al is the Ar. article. See Henna, and cf. Orchanet. ] 1. (Chem.) A dyeing matter extracted from the roots of Alkanna tinctoria, which gives a fine deep red color. [ 1913 Webster ]
2. (Bot.) (a) A boraginaceous herb (Alkanna tinctoria) yielding the dye; orchanet. (b) The similar plant Anchusa officinalis; bugloss; also, the American puccoon. [ 1913 Webster ]
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