Thermotropism

1 definition found

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

  Thermotropism \Ther*mot"ro*pism\, n. [Thermo- + Gr. ? to turn.]
     (Bot.)
     The phenomenon of turning towards a source of warmth, seen in
     the growing parts of some plants.
     [1913 Webster]