Lag screw
Lag Lag, n. 1. One who lags; that which comes in last. [Obs.] ``The lag of all the flock.'' --Pope. [1913 Webster]

2. The fag-end; the rump; hence, the lowest class. [1913 Webster]

The common lag of people. --Shak. [1913 Webster]

3. The amount of retardation of anything, as of a valve in a steam engine, in opening or closing. [1913 Webster]

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. [1913 Webster]

5. (Zo["o]l.) See {Graylag}. [1913 Webster]

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. [Webster 1913 Suppl.]

{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. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Lag screw — Screw Screw (skr[udd]), n. [OE. scrue, OF. escroue, escroe, female screw, F. [ e]crou, L. scrobis a ditch, trench, in LL., the hole made by swine in rooting; cf. D. schroef a screw, G. schraube, Icel. skr[=u]fa.] 1. A cylinder, or a cylindrical… …   The Collaborative International Dictionary of English

  • lag screw — n. a wood screw with a boltlike head: see SCREW …   English World dictionary

  • lag-screw — /lag skrooh /, v.t. to fasten with a lag screw. * * * …   Universalium

  • lag screw — noun a heavy woodscrew with a square or hexagonal head that is driven in with a wrench • Syn: ↑lag bolt • Hypernyms: ↑woodscrew * * * noun Etymology: lag (VI); from its original use in securing lags to drums or cylinders : a …   Useful english dictionary

  • lag-screw — ˈ ̷ ̷ˌ ̷ ̷ transitive verb Etymology: lag screw : to fasten or join with a lag screw * * * /lag skrooh /, v.t. to fasten with a lag screw …   Useful english dictionary

  • lag screw — a heavy wood screw having a square or hexagonal head driven by a wrench. Also called coach screw, lag bolt. See illus. under screw. [1870 75] * * * …   Universalium

  • Screw — (skr[udd]), n. [OE. scrue, OF. escroue, escroe, female screw, F. [ e]crou, L. scrobis a ditch, trench, in LL., the hole made by swine in rooting; cf. D. schroef a screw, G. schraube, Icel. skr[=u]fa.] 1. A cylinder, or a cylindrical perforation,… …   The Collaborative International Dictionary of English

  • Screw alley — Screw Screw (skr[udd]), n. [OE. scrue, OF. escroue, escroe, female screw, F. [ e]crou, L. scrobis a ditch, trench, in LL., the hole made by swine in rooting; cf. D. schroef a screw, G. schraube, Icel. skr[=u]fa.] 1. A cylinder, or a cylindrical… …   The Collaborative International Dictionary of English

  • Screw bean — Screw Screw (skr[udd]), n. [OE. scrue, OF. escroue, escroe, female screw, F. [ e]crou, L. scrobis a ditch, trench, in LL., the hole made by swine in rooting; cf. D. schroef a screw, G. schraube, Icel. skr[=u]fa.] 1. A cylinder, or a cylindrical… …   The Collaborative International Dictionary of English

  • Screw bolt — Screw Screw (skr[udd]), n. [OE. scrue, OF. escroue, escroe, female screw, F. [ e]crou, L. scrobis a ditch, trench, in LL., the hole made by swine in rooting; cf. D. schroef a screw, G. schraube, Icel. skr[=u]fa.] 1. A cylinder, or a cylindrical… …   The Collaborative International Dictionary of English

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