Standard Lemma guide

fenestra

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

An opening in a body, sometimes with a membrane.

Definition source: English Wiktionary via Wiktextract

Topics: anatomy, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a small opening covered with membrane (especially one in the bone between the middle and inner ear)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: orifice, opening, porta

Narrower terms: fenestra ovalis, fenestra vestibuli, oval window, fenestra of the vestibule, fenestra rotunda, fenestra cochleae, round window, fenestra of the cochlea

History

Etymology

Etymology tree Etruscan *𐌚𐌍𐌄𐌔𐌕𐌓𐌀 (*fnestra)bor.? Latin fenestraubor. English fenestra Unadapted borrowing from Latin fenestra. Existed in Middle English as fenestre, fenester, from Old English fenester (“window”).