lag /ˈlæg/
 落後,囚犯,遲延,桶板,防護套(a.)最後的(vi.)落後,蹣跚,緩緩而行


 lag
 延遲


 lag
 滯後


 Lag a.
 1. Coming tardily after or behind; slow; tardy. [Obs.]
    Came too lag to see him buried.   --Shak.
 2. Last; long-delayed; -- obsolete, except in the phrase lag end. “The lag end of my life.”
 3. Last made; hence, made of refuse; inferior. [Obs.] “Lag souls.”


 Lag n.
 1. One who lags; that which comes in last. [Obs.] “The lag of all the flock.”
 2. The fag-end; the rump; hence, the lowest class.
    The common lag of people.   --Shak.
 3. The amount of retardation of anything, as of a valve in a steam engine, in opening or closing.
 4. A stave of a cask, drum, etc.; especially: Mach., one of the narrow boards or staves forming the covering of a cylindrical object, as a boiler, or the cylinder of a carding machine or a steam engine.
 5. Zool. See Graylag.
 6. The failing behind or retardation of one phenomenon with respect to another to which it is closely related; as, the lag of magnetization compared with the magnetizing force (hysteresis); the lag of the current in an alternating circuit behind the impressed electro-motive force which produced it.
 Lag of the tide, the interval by which the time of high water falls behind the mean time, in the first and third quarters of the moon; -- opposed to priming of the tide, or the acceleration of the time of high water, in the second and fourth quarters; depending on the relative positions of the sun and moon.
 Lag screw, an iron bolt with a square head, a sharp-edged thread, and a sharp point, adapted for screwing into wood; a screw for fastening lags.


 Lag, v. i. [imp. & p. p. Lagged p. pr. & vb. n. Lagging ] To walk or more slowly; to stay or fall behind; to linger or loiter. “I shall not lag behind.”
 Syn: -- To loiter; linger; saunter; delay; be tardy.


 Lag, v. t.
 1. To cause to lag; to slacken. [Obs.] “To lag his flight.”
 2. Mach. To cover, as the cylinder of a steam engine, with lags. See Lag, n., 4.


 Lag, n. One transported for a crime. [Slang, Eng.]


 Lag, v. t. To transport for crime. [Slang, Eng.]
    She lags us if we poach.   --De Quincey.

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 lag
      n 1: the act of slowing down or falling behind [syn: slowdown,
           retardation]
      2: the time between one event, process, or period and another
         [syn: interim]
      3: one of several thin slats of wood forming the sides of a
         barrel or bucket [syn: stave]
      v 1: hang (back) or fall (behind) in movement, progress,
           development, etc. [syn: dawdle, fall back, {fall
           behind]
      2: lock up or confine, in or as in a jail; "The suspects were
         imprisoned without trial"; "the murderer was incarcerated
         for the rest of his life" [syn: imprison, incarcerate,
          immure, put behind bars, jail, jug, gaol, {put
         away, remand]
      3: throw or pitch at a mark, as with coins
      4: cover with lagging to prevent heat loss; "lag pipes"
      [also: lagging, lagged]