Definition. Stacking strength of a fiberboard container measured as the maximum load that can be applied to it under specified conditions before it is crushed, and expressed in newtons or pounds per square inch.
As for whether death penalty is justifiable in the rarest of rare cases, there will always be proponents of it who believe that some people truly deserve to die, while others believe that nothing gives us the right to take another person's life.
I think the death penalty is unfortunately constitutional (you can make an argument it's not, but you risk veering too deep into Living Constitution territory), but that's an absurd defense of it. By that logic, the 8th amendment doesn't prohibit anything as long as the government does it enough.