lipogenesis Syllabification: (lip·o·gen·e·sis)Pronunciation: /ˌlipōˈjenəsis, ˌlī-/Definition of lipogenesis noun Physiology the metabolic formation of fat. Derivatives lipogenicPronunciation: /-ˈjenik/ adjective lipogenesis in other Oxford dictionaries Definition of lipogenesis in the British & World English dictionary