Macropinacoid

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    One of the two planes of an orthorhombic crystal which are parallel to the vertical and longer lateral (macrodiagonal) axes.

Etymology

From macro- + pinacoid.

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