roccellic acid

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French roccellique, from roccelle archil, Italian roccella, from Italian rocca a rock, because archil grows on rock.


roccellic acid ‎(uncountable)

  1. (chemistry) A dibasic acid, C17H32O4, of the oxalic series, found in archil (Roccella tinctoria, etc.), and other lichens.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.