IPA: /vɪˌtɛl.əˈdʒɛn.ɪs/
KK: /vɪˌtɛl.əˈdʒɛn.ɪs/
The process of forming the yolk in an egg, which provides nutrients for the developing embryo.
During vitellogenesis, the female fish produces yolk to nourish the eggs.
Vitellogenesis → It is formed from "vitellus" (from Latin, meaning yolk) and "-genesis" (from Greek "genesis", meaning origin or creation). The word refers to the process of yolk formation in the development of eggs.
Think of 'yolk' ('vitellus') being created or formed ('-genesis') — that's why vitellogenesis means the creation of yolk.
No commonly confused words.