A chemical compound formed by replacing hydrogen atoms in ethylene or ethane with other elements; a type of organic chemical derivative.
From 'eth-' (from ethylene/ethane chemistry) plus '-ide' (a suffix for binary compounds, from 'hydride'), used in systematic chemical nomenclature.
Ethides are rarely discussed outside chemistry labs, but they're conceptually important: they show how chemists can take a simple molecule and systematically modify it to create new materials.
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