circularize Syllabification: (cir·cu·lar·ize)Pronunciation: /ˈsərkyələˌrīz/Definition of circularize verb [with object] 1distribute a large number of letters, leaflets, or questionnaires to (a group of people) in order to advertise something or canvas opinion. 2 Biochemistry make (a stretch of DNA) into a circular loop. Derivatives circularizationPronunciation: /ˌsərkyələrəˈzāSHən/ noun circularize in other Oxford dictionaries Definition of circularize in the British & World English dictionary