lag

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lag1 / lag/ • v. (lagged , lag·ging ) [intr.] fall behind in movement, progress, or development; not keep pace with another or others: they stopped to wait for one of the children who was lagging behind. • n. 1. (also time lag) a period of time between one event or phenomenon and another: there was a time lag between the commission of the crime and its reporting to the police. 2. Physics a retardation in an electric current or movement. DERIVATIVES: lag·ger n. lag2 • v. (lagged , lag·ging ) [tr.] (usu. be lagged) enclose or cover (a boiler, pipes, etc.) with material that provides heat insulation: [as adj.] (lagged) a lagged hot-water tank. • n. the nonheat-conducting cover of a boiler, etc.; lagging. ∎  a piece of this. DERIVATIVES: lag·ger n. lag3 chiefly Brit., inf. • n. a person who has been frequently convicted and sent to prison: both old lags were sentenced to ten years' imprisonment. • v. (lagged , lag·ging ) [tr.] archaic arrest or send to prison.

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lagbag, blag, brag, Bragg, crag, dag, drag, fag, flag, gag, hag, jag, lag, mag, nag, quag, rag, sag, scrag, shag, slag, snag, sprag, stag, swag, tag, wag, zag •ragbag • saddlebag •handbag, sandbag •gasbag • ratbag • air bag • mailbag •fleabag, tea bag •beanbag • windbag • kitbag • dillybag •carpet bag • washbag • growbag •nosebag •bumbag, scumbag •punchbag • Stalag • jetlag • greylag •gulag • dishrag • bullyrag • Morag •ragtag • dog tag • Sontag • wigwag •chinwag •scallywag (US scallawag) • zigzag

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lag A normal, dip-slip fault, dipping less than 45°, on which there has been a relative downward displacement of the hanging wall. See also FAULT.

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lag1 fail to keep pace, fall behind. XVI. contemp. with lag sb.1 last or hindmost person, and adj. hindmost, falling behind, which may be a perversion of LAST3 in fog, seg, lag, used dial. in children's games for ‘first, second, last’.

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lag3 stave of a barrel XVII; lath or strip of material in a covering or casing (whence vb.) XIX. prob. of Scand. orig., cf. ON. lǫgg rim of a barrel, f. Gmc. *laʒ-LAY1.

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lag2 †carry off, steal XVI; (sl.) transport, apprehend XIX. of unkn. orig.
Hence lag sb.2 (sl.) convict; term of penal servitude. XIX.

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