roccellic acid

English

Etymology

From French roccellique, from roccelle (“archil”), from Italian roccella, from rocca (“a rock”), because archil grows on rock.

Noun

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 The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “roccellic acid”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)