Substituent

/[sʌbˈstɪtʃuənt]/ noun

Definitions

Noun
  1. 1
    Any atom, group, or radical substituted for another, or entering a molecule in place of some other part which is removed.

    "Other highly effective heterocyclic substituents were pyrazinyl and quinoxalyl."

  2. 2
    Pro-form.

Next best steps

Mini challenge

Unscramble this word: substituent