Dead load and Dead weight

Dead load noun - A constant load on a structure (e.g. a bridge) due to the weight of the supported structure itself.

Dead weight and dead load are semantically related. In some cases you can use "Dead weight" instead a noun phrase "Dead load".

Dead weight noun - A heavy motionless weight.

Dead load and dead weight are semantically related. You can use "Dead load" instead a noun phrase "Dead weight".