an automatic device for operating the shutter of a camera at regular intervals, as in making aerial photographs.
Origin of intervalometer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
an automatic device used to trigger an operation at regular intervals, esp such a device operating the shutter of a camera
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