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tropism

play
noun tro·pism \ˈtrō-ˌpi-zəm\

Definition of tropism

  1. 1a :  involuntary orientation by an organism or one of its parts that involves turning or curving by movement or by differential growth and is a positive or negative response to a source of stimulationb :  a reflex reaction involving a tropism

  2. 2 :  an innate tendency to react in a definite manner to stimuli; broadly :  a natural inclination :  propensity <encouraged his tropism toward the theatrical — John Updike>

tro·pis·tic play \trō-ˈpis-tik\ adjective


Origin of tropism

International Scientific Vocabulary -tropism


First Known Use: 1899


-tropism

noun combining form tro·pism

Definition of -tropism

  1. :  tropism <heliotropism>



Origin of -tropism

International Scientific Vocabulary, from trop-


Medical Dictionary

tropism

play
noun tro·pism \ˈtrō-ˌpiz-əm\

Medical Definition of tropism

  1. :  involuntary orientation by an organism or one of its parts that involves turning or curving by movement or by differential growth and is a positive or negative response to a source of stimulation; also :  a reflex reaction involving a tropism

  2. tro·pis·tic \trō-ˈpis-tik\play adjective




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