Orcein

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    a dye, related to litmus, that is extracted from the lichen Rocella tinctoria; used as a microscopic stain and as a food colouring uncountable, usually

Synonyms

All synonyms
e121e121orchilorchil

Etymology

From French orcéine, modification of orcinol. See also orchil.

Related phrases

aceto-orceinrocella tinctoria

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.