• IPA^(key): [sʌbˈstɪtʃuənt]

• Audio(US):

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substituent (pluralsubstituents)

1. (chemistry) Anyatom, group, orradical substituted for another, or entering amolecule in place of some other part which is removed.
   • 1951, Apollonia Frances Olson, Helen G. Tibbitts,A Study of Head Nurse Activities in a General Hospital, 1950, page163:

     Other highly effective heterocyclicsubstituents were pyrazinyl and quinoxalyl.

   • 2009, Richard H. Wiley,Pyrazoles and Reduced and Condensed Pyrazoles, Volume 22, page387:

     From ethyleneoxides or ethyleneimines carrying an acylsubstituent, with hydrazine and its derivatives (Ch. 3. XV).

   • 2015 October 16, “Polyanionic Carboxyethyl Peptide Nucleic Acids ( ce -PNAs): Synthesis and DNA Binding”, inPLOS ONE‎^[1],→DOI:

     In a recent paper on homopyrimidine decamers containingaeg-monomers and thymine monomers with a sulfomethylsubstituent at the γ-position, similar triplexes has also been described [43 ].

2. (grammar)Pro-form.

• constituent
• substitute

substituent

1. third-personpluralpresentindicative/subjunctive ofsubstituer

substituent

1. third-personpluralfutureactiveindicative ofsubstituō

Fromsubstitui +‎-ent.

substituent m (pluralsubstituenți)

1. substitute

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