RESISTANCES

Spells and objects can add resistances to certain types of damage such as:

Physical: Bludgeon, Pierce, Constrict, Cut, Lacerating

Magic: Magic, Healing, Mental

                 FIRE
          ACID    |    LIGHTNING
              \   |   /   
   NECROTIC \   \ | /   / SONIC
              >-- * --< 
     POISON /   / | \   \ DIVINE
              /   |   \
         WATER    |    EARTH
                COLD

Certain types of resistances can make you vulnerable to another, as the chart 
above indicates.

You can see your resistances on the DEFENSE command.

Different races will have different vulnerabilities and resistances. For example,
dwarves resist poison, heat are resistant to fire but vulnerable to cold, and
dragons resist magic and poison.

See Also: "MAGIC RESISTANCE", DAMAGE, "SAVING THROWS", SPELLS, DEFENSE, RESISTANCE