Definition of "substituent" []

• An atom, radical, or group substituted for another in a chemical compound. (noun)
• Of or relating to such an atom or group. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Would the substituent fractions all have faced the same exact problems?"
• "The other contribution is the synthesis of liquid crystalline conjugated polymers by replacing the hydrogen atom bonded to polyacetylene with a substituent having liquid crystalline nature as the side chain."
• "Deci, această secţiune este prezentat aici ca un substituent, un monument mici pentru a optimismul meu."