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jansky

1 American  
[jan-skee] / ˈdʒæn ski /

noun

Astronomy.

plural

janskies

  1. a unit of flux density for electromagnetic radiation, used chiefly in radio astronomy. Jy

Jansky 2 American  
[jan-skee] / ˈdʒæn ski /

noun

  1. Karl Guthe, 1905–50, U.S. engineer: pioneer in radio astronomy.

Jansky 1 British  
/ ˈdʒænskɪ /

noun

  1. Karl Guthe 1905–50, US electrical engineer. He discovered a source of radio waves outside the solar system (1932) and pioneered radio astronomy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
jansky 2 British  
/ ˈdʒænskɪ /

noun

  1.  Jy.  a unit of flux density equal to 10 –26 W m –2 Hz –1 , used predominantly in radio and infrared astronomy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of jansky

After K. Jansky

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.