vi·​tel·​lo·​gen·​in | \ vī-ˌte-lō-ˈje-nən How to pronounce vitellogenin (audio) \

Definition of vitellogenin

: 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

Examples of vitellogenin in a Sentence

Recent Examples on the Web

Researchers found high levels of vitellogenin—a protein involved in producing egg yolk—in many smallmouth bass. National Geographic, "Why Are These Male Fish Growing Eggs?," 3 Feb. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vitellogenin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of vitellogenin

1969, in the meaning defined above

History and Etymology for vitellogenin

probably from vitellogenesis + -in entry 1

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The first known use of vitellogenin was in 1969

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formidable, illustrious, or eminent

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