摩擦感度是表示物质在爆炸之前，可以允许摩擦的程度。例如硝化甘油的摩擦感度很高，表示轻微的摩擦就可能造成剧烈爆炸。目前还无法精确表示让一物质爆炸，所需要摩擦的量，不过一般会用在物质爆炸之前，给施加的摩擦力以及持续的时间为准。

Friction sensitivity is an approximation of the amount of friction or rubbing a compound can withstand before prematurely exploding. For instance, nitroglycerin has an extremely high sensitivity to friction, meaning that very little rubbing against it could set off a violent explosion. There is no exact determining the amount of friction required to set off a compound, but is rather approximated by the amount of force applied and the amount of time before the compound explodes.