Definitions of scald:

• noun:   the act of burning with steam or hot water
• noun:   a burn cause by hot liquid or steam
• verb:   heat to the boiling point

  Example: "Scald the milk"

• verb:   treat with boiling water

  Example: "Scald tomatoes so that they can be peeled"

• verb:   burn with a hot liquid or steam

  Example: "She scalded her hands when she turned on the faucet and hot water came out"

• verb:   subject to harsh criticism