a chart depicting progress in relation to time of projects, tasks, schedules, etc.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a chart showing, in horizontal lines, activity planned to take place during specified periods, which are indicated in vertical bands
Word Origin for Gantt chart
C20: named after Henry L. Gantt (1861–1919), US management consultant
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