substituent
🇺🇸
/sʌb'stɪtʃʊrnt/
🇬🇧
/sʌb'stɪtʃʊənt/
A part that replaces another part in a chemical compound.
The substituent in this chemical reaction is a group that takes the place of a hydrogen atom.
Something that takes the place of another thing in any system or structure.
In the new design, solar panels are substituents for the traditional power sources.