Tammuz1 Syllabification: (Tam·muz)Pronunciation: /ˈtämo͝oz, ˈtaməz/ Near Eastern MythologyDefinition of Tammuz a Mesopotamian god, lover of Ishtar and similar in some respects to the Greek Adonis. He became the personification of the seasonal death and rebirth of crops. Origin:from Ezek. 8:14, from Akkadian DumuziTammuz in other Oxford dictionaries Definition of Tammuz in the British & World English dictionary