A sick bay is a nautical term for the location in a ship that is used for medical purposes[1] (http://www.m-w.com/cgi-bin/dictionary?book=Dictionary&va=sickbay).
Example Usage of Sickbay
Genex89: @CrypticMatt Step Four: Report to Sickbay because someone just shot you in your phaser face!
lfarmer3: Sickbay... might be the flu.
LtARiker: @CmdrSanders *looks around the room* we were sparring it happens sometimes *looks at you* she went to Sickbay
