jansky
noun
jansky is a noun meaning “A non-SI unit (symbol Jy) measuring electromagnetic flux density equal to 10⁻²⁶ watts per square meter per hertz” (English Wiktionary, September 2026). It is spelled J-A-N-S-K-Y and has 2 syllables, and it appears about once in every 35 million words in written English (wordfreq, 2021 data). The plural of jansky is janskys or janskies.
What does jansky mean?
noun
- 1
A non-SI unit (symbol Jy) measuring electromagnetic flux density equal to 10⁻²⁶ watts per square meter per hertz.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce jansky?
Jansky has 2 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 jansky
- janskys plural
- janskies plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is jansky?
Jansky appears about once in every 35 million words in written English, the 180,281st 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 jansky come from?
Named after radio astronomer Karl Guthe Jansky.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).