Definition of "stridulation" []

• A high-pitched chirping, grating, hissing, or squeaking sound, as male crickets and grasshoppers make by rubbing certain body parts together. (noun)

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• "Mary Ball (1812-1892) discovered the underwater stridulation of the Notonectidæ"
• "After all, where else would I be able to brag about the happiness I found in finally hearing what the defensive stridulation of a dung beetle sounds like?"
• "His voice becomes a mere stridulation for the stating of formula; he seems deaf to all but properly enunciated problems."