longilateral

from The Collaborative International Dictionary of English v.0.48

Longilateral \Lon`gi*lat"er*al\, a. [L. longus long + lateralis
   lateral, fr. latus side.]
   Having long sides; especially, having the form of a long
   parallelogram.
   [1913 Webster]

         Nineveh . . . was of a longilateral figure, ninety-five
         furlongs broad, and a hundred and fifty long. --Sir T.
                                                  Browne.
   [1913 Webster]