orthopinacoid

orthopinacoid is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.A name given to the two planes in the monoclinic system which are parallel to the vertical and orthodiagonal axes.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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