pre·vent

   [pri-vent] 

http://dictionary.reference.com/browse/prevent?s=t

Ex:If however an electric field is applied it has the effect of depolarizing the membrane and thereby preventing atp synthesis.

violent

 [vahy-uh-luhnt]

?s=thttp://dictionary.reference.com/browse/violent?s=t

Ex:The conclusion he draws from these trends is stark: " times are becoming moreviolent " .

explicit

 [ik-splis-it] 

 http://dictionary.reference.com/browse/explicit?s=t

Ex:The same point is made by the addition ' begotten not made, ' which makes the contrast explicit.

mental

 [men-tl]

http://dictionary.reference.com/browse/mental?s=t

Ex:Don't become too mental about exact techniques and don't try to recreate what's there already.

aggressive

 [uh-gres-iv]

 http://dictionary.reference.com/browse/aggressive+?s=t

Ex:Times said quot overly aggressive in nifty gadgets including.