lowering
 (a.)使卑劣的,減弱體力的,昏暗的
 lowering
 *下移
 Low·er·ing a. Dark and threatening; gloomy; sullen; as, lowering clouds or sky.
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 Low·er, v. t. [imp. & p. p. Lowered p. pr. & vb. n. Lowering.]
 1. To let descend by its own weight, as something suspended; to let down; as, to lower a bucket into a well; to lower a sail or a boat; sometimes, to pull down; as, to lower a flag.
 Lowered softly with a threefold cord of love
 Down to a silent grave.   --Tennyson.
 2. To reduce the height of; as, to lower a fence or wall; to lower a chimney or turret.
 3. To depress as to direction; as, to lower the aim of a gun; to make less elevated as to object; as, to lower one's ambition, aspirations, or hopes.
 4. To reduce the degree, intensity, strength, etc., of; as, to lower the temperature of anything; to lower one's vitality; to lower distilled liquors.
 5. To bring down; to humble; as, to lower one's pride.
 6. To reduce in value, amount, etc.; as, to lower the price of goods, the rate of interest, etc.
 Low·er v. i. [imp. & p. p. Lowered p. pr. & vb. n. Lowering.]
 1. To be dark, gloomy, and threatening, as clouds; to be covered with dark and threatening clouds, as the sky; to show threatening signs of approach, as a tempest.
    All the clouds that lowered upon our house.   --Shak.
 2. To frown; to look sullen.
    But sullen discontent sat lowering on her face.   --Dryden.
 lowering
      adj : darkened by clouds; "a heavy sky" [syn: heavy, sullen, threatening]
      n 1: the act of causing to become less
      2: the act of causing something to move to a lower level [syn:
         letting down]