baud (bôd)n. A unit of data transfer speed equal to one change in a carrier signal per second. Since most data transmission schemes transfer more than one bit of data with each change in the carrier signal, one baud is usually equal to several bits per second.[After Jean Maurice Emile Baudot (1845-1903), French engineer.]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.baud (b??d) n (Units) a unit used to measure the speed of electronic code transmissions, equal to one unit interval per second[C20: named after J. M. E. Baudot (1845?1903), French inventor]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014baud (b?d) n. a unit used to measure the speed of signaling or data transfer, equal to the number of pulses or bits per second: baud rate. [1925?30; after J.M.E. Baudot (1845?1903), French inventor] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.