pe·dom·e·ter (p?-d?m??-t?r)n. An instrument that gauges the approximate distance traveled on foot by registering the number of steps taken.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.pedometer (p??d?m?t?) n (Civil Engineering) a device containing a pivoted weight that records the number of steps taken in walking and hence the distance travelledCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014pe?dom?e?ter (p??d?m ? t?r) n. an instrument that measures the distance walked or run by recording the number of steps taken. [1723;