Abbreviator :: Abbreviator (n.) One who abbreviates or shortens.
Abbreviator :: Abbreviator (n.) One of a college of seventy-two officers of the papal court whose duty is to make a short minute of a decision on a petition, or reply of the pope to a letter, and afterwards expand the minute into official form..
Abbreviatory :: Abbreviatory (a.) Serving or tending to abbreviate; shortening; abridging.