Of, relating to, or being a wave with a frequency that is a fraction of a fundamental frequency.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "subharmonic" in a sentence
"But until the warship was well under way and the subharmonic drone of her main drive was making his teeth shake in their sockets, he lay on the floor."
"Kit felt it too: that subharmonic sensation which heralded a gate opening nearby."
"At this point-blank range Bradley could just detect, with his unaided ears, a piccololike subharmonic as the robot scanned the obstacle ahead, and tried to identify it."