The Collaborative International Dictionary of English v.0.48:

Hot \Hot\, a. [Compar. Hotter; superl. Hottest.] [OE. hot,
   hat, AS. h[=a]t; akin to OS. h[=e]t, D. heet, OHG. heiz, G.
   heiss, Icel. heitr, Sw. het, Dan. heed, hed; cf. Goth.
   heit[=o] fever, hais torch. Cf. Heat.]
   1. Having much sensible heat; exciting the feeling of warmth
      in a great degree; very warm; -- opposed to cold, and
      exceeding warm in degree; as, a hot stove; hot water or
      air. "A hotvenison pasty." --Shak.
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   2. Characterized by heat, ardor, or animation; easily
      excited; firely; vehement; passionate; violent; eager.
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            Achilles is impatient, hot, and revengeful.
                                                  --Dryden.
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            There was mouthing in hot haste.      --Byron.
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   3. Lustful; lewd; lecherous. --Shak.
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   4. Acrid; biting; pungent; as, hot as mustard.
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   Hot bed (Iron Manuf.), an iron platform in a rolling mill,
      on which hot bars, rails, etc., are laid to cool.

   Hot wall (Gardening), a wall provided with flues for the
      conducting of heat, to hasten the growth of fruit trees or
      the ripening of fruit.

   Hot well (Condensing Engines), a receptacle for the hot
      water drawn from the condenser by the air pump. This water
      is returned to the boiler, being drawn from the hot well
      by the feed pump.

   In hot water (Fig.), in trouble; in difficulties. [Colloq.]

   Syn: Burning; fiery; fervid; glowing; eager; animated; brisk;
        vehement; precipitate; violent; furious; ardent;
        fervent; impetuous; irascible; passionate; hasty;
        excitable.
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