Dictionary.com
Thesaurus.com

polycondensation

American  
[pol-ee-kon-den-sey-shuhn] / ˌpɒl iˌkɒn dɛnˈseɪ ʃən /

noun

Chemistry.
  1. formation of a polymer by chemical condensation with the elimination of a small molecule, such as water.


Etymology

Origin of polycondensation

First recorded in 1935–40; poly- + condensation