IPA: /vɪˈtɛl.əˌdʒɛn.ɪn/
KK: /vɪˈtɛl.əˌdʒɛn.ɪn/
A protein found in the blood of female animals that helps form egg yolks.
Vitellogenin levels can indicate exposure to certain environmental chemicals.
Vitellogenin is formed from "vitello-" (from Latin "vitellus", meaning yolk) and "-genin" (from Greek "genes", meaning born of or produced by). The word refers to a protein that is produced in the liver and is a precursor to yolk in egg-laying animals.
Think of 'yolk' ('vitello-') being 'produced' ('-genin') in the body, which helps you remember that vitellogenin is related to the creation of egg yolk.
No commonly confused words.