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chromotropism
noun
chro·mot·ro·pism
\krōˈmä‧trəˌpizəm\
variants: less commonly
chromotropy
\-pē\Definition of chromotropism
chromotropisms
alsochromotropies
1 : change of color especially of certain salts known in differently colored modifications — compare chromoisomerism
2 : the orientation of living organisms in relation to color stimuli — compare tropism
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