that illuminates; illuminating.

that inflames, enkindles, incites; provoking or tending to provoke as to action, thought, feeling; of the nature of encouraging; stimulating.

a man or a thing that inflames or helps burning.

that which provokes or tends to provoke, as to action, thought, feeling, etc. or excites or works as a catalyst.

he who gives mental illumination, knowledge; an enlightener.

any drug that temporarily makes a person physically perform more than his natural ability; any of the steroids.