1. 
   Brachydiagonal
   Brach`y·di·ag'o·nal adjective [ Greek brachy`s short + English diagonal .] Pertaining to the shorter diagonal, as of a rhombic prism. Brachydiagonal axis , the shorter lateral axis of an orthorhombic crystal.
   Found op http://www.encyclo.co.uk/webster/B/89
   
   
2. 
   Brachydiagonal
   Brach`y·di·ag'o·nal noun The shorter of the diagonals in a rhombic prism.
   Found op http://www.encyclo.co.uk/webster/B/89
   
   
3. 
   Brachydiagonal
   • (a.) Pertaining to the shorter diagonal, as of a rhombic prism. • (n.) The shorter of the diagonals in a rhombic prism.
   Found op http://thinkexist.com/dictionary/meaning/brachydiagonal/
   
   

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