pro·phy·lac·tic /ˌprō-fə-'lak-tik, ˌprä-/ adj: designed or tending to prevent harm or wrong
a prophylactic rule against profiting from inside information
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.