The common chemical name for aspirin is acetylsalicylic acid. Its systematic name is 2-(acetyloxy) benzoic acid. This is the information according to Wikipedia and does accurately describe the ACTIVE ingredient in a bottle of Bayer aspirin.
load (plural loads) A burden; a weight to be carried. I struggled up the hill with the heavy load in my rucksack. (figuratively) A worry or concern to be endured, especially in the phrase a load off one's mind.
A Static Load: A good example of this is a person seen on the left. He is holding a stack of books on his back but he is not moving. The force downwards is STATIC. A Dynamic Load: A good example of a dynamic load is the person on the right.