tropism
noun(tro-pism)
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
tropism
noun(tro-pism)
a reflex reaction involving a tropism
tropism
noun(tro-pism)
an innate tendency to react in a definite manner to stimuli; broadly : a natural inclination : propensity
tropism
noun combining form(tro-pism)
tropism