infernal machine
noun
Definition of infernal machine
: a machine or apparatus maliciously designed to explode and destroy life or property; especially : a concealed or disguised bomb
Explore M-W
1810
First Known Use of infernal machine
1810
Learn More about infernal machine
Seen and Heard
What made you want to look up infernal machine? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!