Crowdion

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A proposed form of lattice imperfection in crystals in which an extra atom is inserted (crowded in) within a row

Etymology

Possibly a blend of crowd + region. Coined by Heinz R. Paneth in 1950.

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