aqualung
noun, verb
aqualung is a noun meaning “A piece of equipment consisting of an oxygen tank and breathing apparatus used by divers to allow them to breathe underwater” (English Wiktionary, September 2026). It is spelled A-Q-U-A-L-U-N-G and has 3 syllables, and it appears about once in every 21 million words in written English (wordfreq, 2021 data). The plural of aqualung is aqualungs.
What does aqualung mean?
noun
- 1
A piece of equipment consisting of an oxygen tank and breathing apparatus used by divers to allow them to breathe underwater.
verb
- 1
To scuba dive.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce aqualung?
Aqualung has 3 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of aqualung
- aqualungs plural, present, singular, he/she/it
- aqualunging participle, present
- aqualunged participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is aqualung?
Aqualung appears about once in every 21 million words in written English, the 139,999th 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).
Aqualung in Spanish, French, German and Portuguese
In the sense diving equipment – see also scuba:
| Language | Words |
|---|---|
| German | Aqualunge, Drucklufttauchgerät, DTG, Tauchgerät |
| Portuguese | aqualung |
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 aqualung come from?
Aqualung was the original name for the first open-circuit SCUBA diving equipment by Emile Gagnan and Jacques Cousteau in 1943. From aqua- + lung.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).