You can't focus on studying if you're chatting with someone else, too. So the cell phone is off limits. Turn off the home phone, too, along with the computer (unless you're prepping on it) and any music with vocals. Study music should be lyric-free! Post a sign on your door for people to stay away.
cuirass (plural cuirasses) 1  A piece of defensive armor, covering the body from the neck to the girdle. 2  The breastplate taken by itself.
There was a steel head-piece, a cuirass, a gorget and greaves, with a pair of gauntlets and a sword hanging beneath; all, and especially the helmet and breastplate, so highly burnished as to glow with white radiance, and scatter an illumination everywhere about upon the floor.