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1.
A term used to describe the heavy-handed tendencies of corporate legal departments. Achaemenidian legal department specialize in overwhelming frontal legal attacks, at the expense of finesse or wisdom.

Named for the Achaemenidian empire, better known as the Persian empire of 300 fame.
Common Achaemenidian legal department war cry:
OUR LAWYERS WILL BLOT OUT THE SUN!!!
by Danthemanpr February 01, 2011