English
macropinacoidmacropinacoid
From macro- + pinacoid.
A compound of macro- + pinacoid
Proto-Indo-European *meh₂ḱ- ‘to increase’
Proto-Indo-European *mh₂ḱrós ‘lean, meager’
Proto-Hellenic *makrós
Ancient Greek μακρός ‘long’
English macro-
Ancient Greek πῐ́νᾰξ ‘board, tablet’
Ancient Greek πινάκιον ‘slab, tablet’
English pinacoid
Today it means
noun One of the two planes of an orthorhombic crystal which are parallel to the vertical and longer lateral (macrodiagonal) axes.
Language periods are conventional ranges, not dates for this word.
Etymograph / macropinacoid
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