Didymium

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A mixture of praseodymium and neodymium once thought to be an element (symbol Di). uncountable

Etymology

From Ancient Greek δίδυμος (dídumos, “twin”) + -ium.

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