Rhein

noun

noun ·1 syllable ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An anthraquinone found in rhubarb. uncountable

Synonyms

All synonyms
cassic acidcassic acidrhine

Etymology

From translingual Rheum + -in.

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