chromotropism

noun
chro·​mot·​ro·​pism | \ krōˈmä‧trəˌpizəm \
variants: or less commonly chromotropy \ -​pē \
plural chromotropisms also chromotropies

Definition of chromotropism

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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“Chromotropism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chromotropism. Accessed 17 Jan. 2021.

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