The quality or capacity of being able to conduct or transmit something, especially electricity or heat.
From 'conducible' (capable of being conducted) plus the suffix '-ity' (from Latin '-itas'), which forms nouns from adjectives. This is an older, less common variant of 'conductivity' that survives in some technical vocabularies.
This is the older cousin of 'conductivity'—both words mean basically the same thing, but 'conductibility' emphasizes the *capacity* to conduct, while 'conductivity' has become the standard scientific term, showing how language evolves as fields mature.
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