Lonsdaleite

//ˈlɒnzdəlaɪt// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A hexagonal-dihexagonal dipyramidal mineral containing carbon. Also called hexagonal diamond. uncountable, usually

Etymology

From Lonsdale + -ite, in honour of Irish crystallographer Kathleen Lonsdale.

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