What's the difference between stridulate and stridulator?

Stridulate

Definition:

(v. t.) To make a shrill, creaking noise
(v. t.) to make a shrill or musical sound, such as is made by the males of many insects.

Example Sentences:

(1) The diagnostic evaluation of the stridulous child is discussed.
(2) Early visualization of the larynx should be done in patients who become stridulous when extubated, especially those with prior thoracic procedures or with neurologic disorders associated with intracranial hypertension.
(3) All these neurons are active during induced stridulation and discharge in the stridulation rhythm.
(4) In quiescent grasshoppers the G-neuron responds to auditory and vibratory stimuli, but responses to both stimuli are suppressed during stridulation in males.
(5) In males of the katydid Neoconocephalus robustus, mesothoracic wings are used in flight (wing stroke frequence = 20 Hz) and stridulation (200 Hz), while the metathoracic wings are used in flight alone.
(6) The typical exacerbation is characterized by symptoms of wheezing, dyspnea, and cough associated with the signs of tachycardia, tachypnea, hyperinflation of the thorax, and stridulous breathing.
(7) Two techniques for accurately correlating movements with vibrations produced by Pogonomyrmex Occidentalis show three characteristics of the stridulations: alternation of mean chirp intensity, higher frequencies during the upstroke, and interruption of chirps into distinct pulses.

Definition:

Example Sentences:

(1) The diagnostic evaluation of the stridulous child is discussed.
(2) Early visualization of the larynx should be done in patients who become stridulous when extubated, especially those with prior thoracic procedures or with neurologic disorders associated with intracranial hypertension.
(3) All these neurons are active during induced stridulation and discharge in the stridulation rhythm.
(4) In quiescent grasshoppers the G-neuron responds to auditory and vibratory stimuli, but responses to both stimuli are suppressed during stridulation in males.
(5) In males of the katydid Neoconocephalus robustus, mesothoracic wings are used in flight (wing stroke frequence = 20 Hz) and stridulation (200 Hz), while the metathoracic wings are used in flight alone.
(6) The typical exacerbation is characterized by symptoms of wheezing, dyspnea, and cough associated with the signs of tachycardia, tachypnea, hyperinflation of the thorax, and stridulous breathing.
(7) Two techniques for accurately correlating movements with vibrations produced by Pogonomyrmex Occidentalis show three characteristics of the stridulations: alternation of mean chirp intensity, higher frequencies during the upstroke, and interruption of chirps into distinct pulses.