Definition of "stridulous" [strid•u•lous]

• Characterized by or making a shrill grating sound or noise. (adjective)
• Relating to or characterized by stridor. (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.

• "In passing through some parts where a good shower of rain has fallen, the stridulous piercing notes of the cicadae are perfectly deafening; a drab-colored cricket joins the chorus with a sharp sound, which has as little modulation as the drone of a Scottish bagpipe."
• "Screw your lyre up to concert pitch, and go on with your stridulous performances!"
• "The emancipated ghosts floated in all directions, emitting their shrill and stridulous cries in the gleaming expanse."