an instrument for drawing arcs, having a flexible arc-shaped part adjusted by an extensible straight bar connecting its sides.
Origin of arcograph
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
geometry an instrument used for drawing arcs without using a central pointAlso called: cyclograph
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