a concealed or disguised explosive device intended to destroy life or property.
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Origin of infernal machine
First recorded in 1800–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for infernal machine
Suddenly, as he crossed the threshold, he remembered the infernal-machine.Witch Winnie|Elizabeth W. Champney
British Dictionary definitions for infernal machine
archaic a usually disguised explosive device or booby trap
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