4. Humiliation; abasement, as of pride.
5. Dejection; despondency; lowness. In a great depression of spirit. Baker.
6. Diminution, as of trade, etc.; inactivity; dullness.
7. (Astron.)
Defn: The angular distance of a celestial object below the horizon.
8. (Math.)
Defn: The operation of reducing to a lower degree; — said of equations.
9. (Surg.)
Defn: A method of operating for cataract; couching. See Couch, v. t., 8. Angle of depression (Geod.), one which a descending line makes with a horizontal plane. — Depression of the dewpoint (Meteor.), the number of degreees that the dew-point is lower than the actual temperature of the atmosphere. — Depression of the pole, its apparent sinking, as the spectator goes toward the equator. — Depression of the visible horizon. (Astron.) Same as Dip of the horizon, under Dip.
Syn. — Abasement; reduction; sinking; fall; humiliation; dejection; melancholy.