noun, plural jan·skies.
a unit of flux density for electromagnetic radiation, used chiefly in radio astronomy. Abbreviation: Jy
Origin of jansky
after K. Jansky
Karl Guthe,1905–50, U.S. engineer: pioneer in radio astronomy.
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Examples from the Web for jansky
Historical Examples of jansky
Later observers, for example Jansky and Moss, established four groups.The Organism as a Whole
noun plural -skys
a unit of flux density equal to 10 –26 W m –2 Hz –1, used predominantly in radio and infrared astronomySymbol: Jy
Word Origin for jansky
C20: named after K. G. Jansky
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