metachromatism

met.a.chro.ma.tism

n.（名词）
A change in color caused by variation of the physical conditions to which a body is subjected, especially such a change caused by variation in temperature.
变色反应性：因身体状况的变化而引起的变色反应，尤指由于温度变化而引起的

【引伸】
met.achromat.ic