SG Heritage Dictionary

Depressor [Noun] Webster's Dictionary 1828

1. He that presses down; an oppressor.

2. In anatomy, a muscle that depresses or draws down the part to which it is attached; as the depressor of the lower jaw, or of the eyeball. It is called also depriment or deprimens.

Depressor [Noun] Webster's Dictionary 1913

1. One who, or that which, presses down; an oppressor.

2. A muscle that depresses or tends to draw down a part.