Webster's Revised Unabridged Dictionary · 1913

Brachydiagonal

Brachydiagonal ({not transcribed}) , adjective

[Greek brachy`s short + English diagonal.]

Pertaining to the shorter diagonal, as of a rhombic prism.
Collocations (1)
Brachydiagonal axis , the shorter lateral axis of an orthorhombic crystal.

Brachydiagonal , noun

The shorter of the diagonals in a rhombic prism.