The quality of being fluxible; the capacity to flow or be transformed through heat, pressure, or chemical action.
From 'fluxible' + suffix '-ness' (forming abstract nouns). A 17th-century term developed by natural philosophers studying materials and their properties.
Renaissance scientists studying the 'fluxibleness' of metals helped develop modern chemistry—they realized that what seemed permanent could transform, revolutionizing how we understand matter.
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