jansky
noun
a unit of flux density for electromagnetic radiation, used chiefly in radio astronomy. Jy
jansky
1 American
[jan-skee]
/ ˈdʒæn ski /
noun
Astronomy.
-
janskies
plural
Jansky
2
American
[jan-skee]
/ ˈdʒæn ski /
noun
Jansky
1
British
/ ˈdʒænskɪ /
noun
jansky
2
British
/ ˈdʒænskɪ /
noun
Other Word Forms
Noun Inflected Forms
Etymology
Origin of jansky
After K. Jansky
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Radio observations from the Karl G. Jansky Very Large Array near San Agustin, New Mexico revealed a pair of massive plasma jets emerging from opposite sides of the galaxy.
From Science Daily ● Jan. 10, 2026
Sequencing the DNA is something like a roadmap that makes it easier to select traits that make potatoes more resistant to disease and environmental burdens, said Shelley Jansky, a longtime research geneticist with the USDA.
From Salon ● Dec. 14, 2023
An upgraded “next generation” version of the Karl G. Jansky Very Large Array of radio telescopes in New Mexico could begin operations toward the end of the 2020s and settle the debate.
From Scientific American ● Apr. 5, 2022
Her name was Jeannette Jansky and it wasn’t until years later I realized I had a mild form of dyslexia and she was a well-respected expert on child learning disabilities.
From New York Times ● Sep. 16, 2021
This rotating radio antenna was used by Jansky in his serendipitous discovery of radio radiation from the Milky Way.
From Textbooks ● Oct. 13, 2016
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
