depressor

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Related to depressor muscles: Abductor muscles, levator muscles

depressor

[di′pres·ər]
(anatomy)
A muscle that draws a part down.
(chemical engineering)
An agent that prevents or retards a chemical reaction or process.
References in periodicals archive ?
Tongue blade: Tongue blade can be employed so that force delivered is imparted by the depressor muscle alone, and thus the tongue blades are not used as a wedge.
The data suggest: 1) that surface electrode EMG biofeedback is a reliable indicator of the activity of the laryngeal depressor muscles ST/SH; 2) that EMG biofeedback is useful in teaching both male and female singers to activate the laryngeal depressor muscles and to maintain a lower laryngeal posture while singing; and 3) that the achievement of said laryngeal posture improves the perceived quality of sung tone, intensifies the "singer's formant cluster," increases the overall amplitude of the tone, and encourages vibrato oscillations.
One possible reason for this anomaly is the action of the omohyoid muscle, which is a laryngeal depressor muscle that originates at the scapula and inserts at the hyoid bone.