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fetoprotein

noun

fetoprotein is a noun meaning “Any of several antigens produced in a developing embryo, of which the most common is alpha-fetoprotein” (English Wiktionary, September 2026). It is spelled F-E-T-O-P-R-O-T-E-I-N, and it appears about once in every 48 million words in written English (wordfreq, 2021 data). The plural of fetoprotein is fetoproteins.

What does fetoprotein mean?

noun

  1. 1

    Any of several antigens produced in a developing embryo, of which the most common is alpha-fetoprotein.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of fetoprotein

  • fetoproteins plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is fetoprotein?

Fetoprotein appears about once in every 48 million words in written English, the 214,628th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Where does fetoprotein come from?

From feto- + protein.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).