noun vi·tel·lo·gen·in \vī-ˌte-lō-ˈje-nən\

Definition of vitellogenin

  1. :  a precursor protein of egg yolk normally in the blood or hemolymph only of females that is used as a biomarker in vertebrates of exposure to environmental estrogens which stimulate elevated levels in males as well as females

Origin and Etymology of vitellogenin

probably from vitellogenesis + 1-in

First Known Use: 1971

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