The Collaborative International Dictionary
Depressor nerve
Depressor \De*press"or\, n.
One who, or that which, presses down; an oppressor.
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(Anat.) A muscle that depresses or tends to draw down a part.
Depressor nerve (Physiol.), a nerve which lowers the activity of an organ; as, the depressor nerve of the heart.
WordNet
depressor nerve
n. any nerve whose activity tends to reduce the activity or tone of the body part it serves [syn: depressor]