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pilin

noun

pilin is a noun meaning “Any of a class of fibrous proteins found in pilus structures in bacteria” (English Wiktionary, September 2026). It is spelled P-I-L-I-N, and it appears about once in every 58 million words in written English (wordfreq, 2021 data). The plural of pilin is pilins.

What does pilin mean?

noun

  1. 1

    Any of a class of fibrous proteins found in pilus structures in bacteria

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

Forms of pilin

  • pilins plural

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

How common is pilin?

Pilin appears about once in every 58 million words in written English, the 237,177th 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).

Pilin in Spanish, French, German and Portuguese

In the sense any of a class of fibrous proteins found in pilus structures in bacteria:

LanguageWords
Frenchpiline

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does pilin come from?

From pilus + -in.

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