Clinopinacoid

• (n.) The plane in crystals of the monoclinic system which is parallel to the vertical and the inclined lateral (clinidiagonal) axes.
Found on http://thinkexist.com/dictionary/meaning/clinopinacoid/

Clinopinacoid

Cli`no·pin'a·coid noun [ Greek kli`nein to incline + English pinacoid .] (Crystallog.) The plane in crystals of the monoclinic system which is parallel to the vertical and the inclined lateral (clinidiagonal) axes.
Found on http://www.encyclo.co.uk/webster/C/93
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