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substituent

Syllabification: (sub·stit·u·ent)

Definition of substituent

noun

Chemistry
  • an atom or group of atoms taking the place of another atom or group or occupying a specified position in a molecule.

Origin:

late 19th century: from Latin substituent- 'standing in place of', from the verb substituere (see substitute)

substituent in other Oxford dictionaries

Definition of substituent in the British & World English dictionary