Source : Webster's Revised Unabridged Dictionary (1913)

Steam \Steam\, v. i. [imp. & p. p. {Steamed}; p. pr. & vb. n.
   {Steaming}.]
   1. To emit steam or vapor.

            My brother's ghost hangs hovering there, O'er his
            warm blood, that steams into the air. --Dryden.

            Let the crude humors dance In heated brass, steaming
            with fire intence.                    --J. Philips.

   2. To rise in vapor; to issue, or pass off, as vapor.

            The dissolved amber . . . steamed away into the air.
                                                  --Boyle.

   3. To move or travel by the agency of steam.

            The vessel steamed out of port.       --N. P.
                                                  Willis.

   4. To generate steam; as, the boiler steams well.

Source : WordNet®

steaming
     adj : emitting moisture in the form of vapor or mist; "a steaming
           kettle"; "steaming towels"
     adv : (used of heat) extremely; "the casserole was piping hot"
           [syn: {piping}]