Definition of synthesize written for English Language Learners from the Merriam-Webster Learner's Dictionary with audio pronunciations, usage examples, and count. Looking for online definition of synthesise in the Medical Dictionary? synthesise explanation free. Synthesise | definition of synthesise by Medical dictionary. Define synthesize: to make (something) by combining different things—usage, synonyms, more. Follow: GAMES; WORD OF THE DAY; VIDEO; WORDS AT PLAY; FAVORITES; SINCE 1828. Meaning of “synthesize” in the English Dictionary. British; Business synthesize in British English. (UK also synthesise) uk us / ˈsɪnθəsaɪz / Define synthesise and get synonyms. What is synthesise? synthesise meaning, pronunciation and more by Macmillan Dictionary synthesise Past participle: synthesised Gerund: synthesising. Imperative; synthesise: synthesise: Present; I synthesise: you synthesise: he/she/it synthesises verb (used with object), synthesized, synthesizing. 1. to form (a material or abstract entity) by combining parts or elements (opposed to analyze): to synthesize a. Define synthesize. synthesize synonyms, synthesize pronunciation, synthesize translation, English dictionary definition of synthesize. v. synthesise or synthetise. synthesise - Translation to Spanish, pronunciation, and forum discussions Synthesize definition, to form. Also, synthetize; especially British, synthesise. Origin of synthesize Expand. 1820-1830. 1820-30; synthes(is) + -ize. Related.