In chemistry|lang=en terms the difference between trimerization and cyclotrimerization
is that trimerization is (chemistry) the formation of a trimer while cyclotrimerization is (chemistry) any trimerization reaction accompanied by the formation of a ring.
As nouns the difference between trimerization and cyclotrimerization
is that trimerization is (chemistry) the formation of a trimer while cyclotrimerization is (chemistry) any trimerization reaction accompanied by the formation of a ring.