Zwor·y·kin (zwôr??-k?n, zvôr?y?-), Vladimir Kosma 1889-1982. Russian-born American engineer and inventor of the iconoscope (1923), the first practical television camera.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Zworykin (?zw??r?k?n) n (Biography) Vladimir Kosma (?vlæd?m?? ?k?sm?). 1889?1982, US physicist and television pioneer, born in Russia. He developed the first practical television cameraCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Zwor?y?kin (?zw?r ? k?n) n. Vladimir Kosma, 1889?1982, U.S. engineer and inventor, born in Russia. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.