aeronomy
noun
aeronomy is a noun meaning “A branch of science that deals with the upper atmosphere of the Earth and of other planets with reference to their chemical composition, physical…” (English Wiktionary, September 2026). It is spelled A-E-R-O-N-O-M-Y, and it appears about once in every 49 million words in written English (wordfreq, 2021 data). The plural of aeronomy is aeronomies.
What does aeronomy mean?
noun
- 1
A branch of science that deals with the upper atmosphere of the Earth and of other planets with reference to their chemical composition, physical properties, relative motion, and responses to radiation from space.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce aeronomy?
- US
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Wodencafe-aeronomy.wav, Wikimedia Commons (author and licence on each file's page).
Forms of aeronomy
- aeronomies plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is aeronomy?
Aeronomy appears about once in every 49 million words in written English, the 217,360th 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).
Aeronomy in Spanish, French, German and Portuguese
In the sense study of the upper atmosphere:
| Language | Words |
|---|---|
| Portuguese | aeronomia |
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 aeronomy come from?
From aero- (“air”) + -nomy (“a system of rules or laws about a particular field”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).