fenestron
fenestron noun: a protected tail rotor of a helicopter, operating like a ducted fan.

Noun
fenestron (plural fenestrons)
- A protected tail rotor of a helicopter, operating like a ducted fan.
Forms of fenestron
| plural | fenestrons |
|---|
Origin of fenestron
Borrowed from French fenestron (“small window”), ultimately from Latin fenestra (“window”).
Questions about fenestron
- What does fenestron mean?
- Fenestron means a protected tail rotor of a helicopter, operating like a ducted fan.
- What part of speech is fenestron?
- Fenestron is a noun.
- What is the plural of fenestron?
- The plural of fenestron is fenestrons.
Words near fenestron in the dictionary
Source and license
Adapted from Wiktionary: fenestron (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “fenestron.” Word.ws, https://word.ws/fenestron. Based on Wiktionary, CC BY-SA 4.0.
