Emily Dickinson Lexicon

PI-RAT'IC-AL, a. [L. piraticus.]

1. Robbing or plundering by open violence on the high seas; as, a piratical commander or ship.
2. Consisting in piracy; predatory; robbing; as, a piratical trade or occupation.
3. Practicing literary theft. The errors of the press were multiplied by piratical printers. – Pope.