Resist

Both creatures and armour can have resistance to cold, heat, electric, radiative, corrosive, force, pierce or slash damage types.

Creatures covered in tough scales are often afforded slash and pierce resistance. Creatures that are covered in a carapace can have force resistance as well.

Regardless of damage type, resistance acts to reduce the damage you would otherwise suffer. If you wear armour that affords 2(resist,prc), and the attack does 14(hp,prc), then you can subtract 2 points, because of that armour, and suffer only 12 points as a result.

If your armour cannot protect you from a particular damage type, then you cannot subtract anything from the damage. For example most armour does not protect against radiative damage. So if that attack was 14(hp,rad) and your armour has no radiative listing, or is listed as 0(resist,rad), that is, no radiative resistance at all, then you would still suffer the full 14 points.

This resistance usually protects you from field damage as well, with the same effect. For example, if you are caught within a 8(field,cold) and you are wearing an aegis suit with 5(field,cold), then you will only suffer 3(field,cold) in health damage.