Thermotropism
Pronunciation : Ther*mot"ro*pism
Part of Speech : n.
Etymology : [Thermo- + Gr. (Bot.)
Definition : Defn: The phenomenon of turning towards a source of warmth, seen in the growing parts of some plants.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder