fenestra
noun
fenestra is a noun meaning “An opening in a body, sometimes with a membrane” (English Wiktionary, September 2026). It is spelled F-E-N-E-S-T-R-A, and it appears about once in every 16 million words in written English (wordfreq, 2021 data). The plural of fenestra is fenestras or fenestrae; Wiktionary also lists fenestræ (obsolete).
What does fenestra mean?
noun
- 1
An opening in a body, sometimes with a membrane.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of fenestra
- fenestras plural
- fenestrae plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is fenestra?
Fenestra appears about once in every 16 million words in written English, the 121,279th 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 fenestra come from?
Unadapted borrowing from Latin fenestra. Existed in Middle English as fenestre, fenester, from Old English fenester (“window”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).