[1] : The Collaborative International Dictionary of English v.0.48

latent \la"tent\ l=a"tent, a. l. latens, -entis, p. pr. of
   latere to lie hid or concealed; cf. gr. lanqa`nein, e.
   lethargy: cf. f. latent.
   1. not visible or apparent; hidden; concealed; secret;
      dormant; as, latent springs of action.
      1913 webster

            the evils latent in the most promising contrivances
            are provided for as they arise.       --burke.
      1913 webster

   2. med. existing but not presenting symptoms; dormant or
      developing; -- of disease, especially infectious diseases;
      as, the latent phase of an infection.
      pjc

   latent buds bot., buds which remain undeveloped or
      dormant for a long time, but may eventually grow.

   latent heat physics, that quantity of heat which
      disappears or becomes concealed in a body while producing
      some change in it other than rise of temperature, as
      fusion, evaporation, or expansion, the quantity being
      constant for each particular body and for each species of
      change; the amount of heat required to produce a change of
      phase.

   latent period.
      a med. the regular time in which a disease is supposed
          to be existing without manifesting itself.
      b physiol. one of the phases in a simple muscular
          contraction, in which invisible preparatory changes
          are taking place in the nerve and muscle.
      c biol. one of those periods or resting stages in the
          development of the ovum, in which development is
          arrested prior to renewed activity.
          1913 webster
see also:
latent buds latent heat latent period 

[2] : WordNet (r) 2.0

latent heat
     n : heat absorbed or radiated during a change of phase at a
         constant temperature and pressure syn: heat of
         transformation
see also:
heat of transformation 

Heat >> H Words
Heat, definition of term: Heat
heat_pag1.html

Heat Wave >> H Words
Heat Wave, definition of term: Heat Wave
heat+wave_pag1.html

Heat Pump >> H Words
Heat Pump, definition of term: Heat Pump
heat+pump_pag1.html

Heat Exhaustion >> H Words
Heat Exhaustion, definition of term: Heat Exhaustion
heat+exhaustion_pag1.html

Heat Energy >> H Words
Heat Energy, definition of term: Heat Energy
heat+energy_pag1.html

Heat Exchanger >> H Words
Heat Exchanger, definition of term: Heat Exchanger
heat+exchanger_pag1.html

Heat Sink >> H Words
Heat Sink, definition of term: Heat Sink
heat+sink_pag1.html

Heat Of Fusion >> H Words
Heat Of Fusion, definition of term: Heat Of Fusion
heat+of+fusion_pag1.html

Heat Of Vaporiz >> H Words
Heat Of Vaporiz, definition of term: Heat Of Vaporiz
heat+of+vaporiz_pag1.html