PHOTOCHROMISM is validvalid

the property of changing color on exposure to light or other radiation and of reverting to original color immediately the light or radiation source is removed

183,496 of 196,601 in NWL2023·also valid in CSW24

the property of changing color on exposure to light or other radiation and of reverting to original color immediately the light or radiation source is removed

179,331 of 280,887 in CSW24·also valid in NWL2023

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