Iosis
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 Synonym of rubedo (“reddening process in the alchemical magnum opus”). uncountable
Synonyms
All synonymsEtymology
From Ancient Greek ἴωσις (íōsis), from ἰός (iós, “rust”).
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.