subsidev. i.[L. subsidere; sub under, below + sidere to sit down, to settle; akin to sedere to sit, E. sit. See Sit.]1. To sink or fall to the bottom; to settle, as lees.()2. To tend downward; to become lower; to descend; to sink.(Dryden.)3. To fall into a state of quiet; to cease to rage; to be calmed; to settle down; to become tranquil; to abate; as, the sea subsides; the tumults of war will subside; the fever has subsided.(C. Middleton.)()n.[L. subsidens, -entis, p. pr. of subsidere. See Subside.] The act or process of subsiding.()The subdual or subsidence of the more violent passions. (Bp. Warburton.)