• WordNet 3.6
    • v lag cover with lagging to prevent heat loss "lag pipes"
    • v lag throw or pitch at a mark, as with coins
    • v lag hang (back) or fall (behind) in movement, progress, development, etc.
    • v lag 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"
    • n lag the act of slowing down or falling behind
    • n lag one of several thin slats of wood forming the sides of a barrel or bucket
    • n lag the time between one event, process, or period and another "meanwhile the socialists are running the government"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Before jets, jet lag was called boat lag.
    • Lag (Mach) A stave of a cask, drum, etc.;
    • Lag Coming tardily after or behind; slow; tardy. "Came too lag to see him buried."
    • Lag Last made; hence, made of refuse; inferior. "Lag souls."
    • Lag Last; long-delayed; -- obsolete, except in the phrase lag end. "The lag end of my life."
    • n Lag One transported for a crime.
    • Lag One who lags; that which comes in last. "The lag of all the flock."
    • Lag (Zoöl) See Graylag.
    • Lag The amount of retardation of anything, as of a valve in a steam engine, in opening or closing.
    • Lag The fag-end; the rump; hence, the lowest class. "The common lag of people."
    • Lag 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 To cause to lag; to slacken. "To lag his flight."
    • Lag (Mach) To cover, as the cylinder of a steam engine, with lags. See Lag n., 4.
    • v. t Lag To transport for crime. "She lags us if we poach."
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: The phrase "jet lag" was once called "boat lag", back before airplanes existed.
    • lag Slow; tardy; late; coming after or behind.
    • lag Long delayed; last.
    • n lag One who or that which comes behind; the last comer; one who hangs back.
    • n lag The lowest class; the rump; the fag-end.
    • n lag In mech., the amount of retardation of some movement: as, the lag of the valve of a steam-engine.
    • n lag In machinery, one of the strips which form the periphery of a wooden drum, the casing of a carding-machine, or the lagging or covering of a steam-boiler or-cylinder.
    • n lag An old convict.
    • lag To move slowly; fall behind; hang back; loiter; linger.
    • lag To slacken.
    • lag To clothe, as a steam-boiler, to prevent radiation of heat.
    • lag To bring into the hands of justice; cause to be punished for a crime.
    • lag To take; steal.
    • n lag A term of hard labor or transportation.
    • n lag In electricity, the displacement of phase of an electric wave back, or behind (in time), to another electric wave: used mainly with regard to alternating-current circuits.
    • n lag See lagging of the tides, under lagging.
    • n lag The angle corresponding to the lag of the tides; the hour-angle between the lunar transit and the flood-tide; the shifting of the earth's magnetic system from a symmetrical distribution about the noon meridian into the observed eccentric position.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Lag lag slack: sluggish: coming behind
    • n Lag he who, or that which, comes behind: the fag-end:
    • v.i Lag to move or walk slowly: to loiter
    • v.t Lag (slang) to commit to justice:—pr.p. lag′ging; pa.p. lagged
    • n Lag (slang) an old convict
    • ***


Webster's Revised Unabridged Dictionary
Of Celtic origin: cf. Gael. & Ir. lag,weak, feeble, faint, W. llag, llac, slack, loose, remiss, sluggish; prob. akin to E. lax, languid,


In literature:

In this exciting occupation the morning lagged heavily on.
"Ten Boys from Dickens" by Kate Dickinson Sweetser
I had been tired for a long time and now I began to limp and lag.
"Tales of lonely trails" by Zane Grey
He went back to "taws," and "lagged for goes," with the others.
"The Court of Boyville" by William Allen White
This expectancy gave impetus to her lagging steps.
"The Mysterious Rider" by Zane Grey
I lagged across the court at Vigo's heels, silent.
"Helmet of Navarre" by Bertha Runkle
Still he lagged and struggled until he reached the shelter of the trees, where he halted.
"The Road" by Jack London
Even now I come lagging, but by no will of mine!
"The Children's Hour, Volume 3 (of 10)" by Various
Conversation lagged while all four carefully watched the actions of the approaching men.
"The Go Ahead Boys and Simon's Mine" by Ross Kay
Unwillingly he went with lagging footsteps until at length he came to the cave hard by the seashore.
"Young Folks Treasury, Volume 2 (of 12)" by Various
Dyan patently delayed starting, patently lagged behind.
"Far to Seek" by Maud Diver

In poetry:

"And Michael, he has fallen too,
That Christ his wounds may bind;
Come, Paterson, stand thou by me,
We will not lag behind."
"Cameron's Stone" by Alexander Anderson
And many days, and many more,
Came on, and lagging sped,
And the heavy waves of that sleeping sea
Were dark, like molten lead.
"The Old Man's Story" by Mary Botham Howitt
An' I do zee the friskèn lam's,
Wi' swingèn taïls an' woolly lags,
A-playèn roun' their veedèn dams
An' pullèn o' their milky bags.
"The Shepherd O’ The Farm" by William Barnes
O take me to thy bower!
Beguile the lagging hours of weariness
With strain which hath strange power
To make me love thee as I love life less!
"O For Thy Wings, Sweet Bird" by Mary Baker Eddy
"Yes, up the hill, and gained it, too;
Not one brave boy was seen to lag.
Old Glory o'er us floating free,
We'd gladly died for that old flag."
"A Hero Of San Juan [Hill]" by Olivia Ward Bush-Banks
Since on an ever flowing tide,
These forms are swiftly sailing;
Let not the spirit lag behind,
For life's frail cords that stay the mind,
May even now be failing.
"On The Fading Enjoyments Of Time" by Elizabeth Bath

In news:

Watusi lags a bit behind the neighbours.
Southwest Florida might be lagging a bit .
This Black Friday and holiday season the price is right if you are shopping for TVs TV makers need to generate sales and rid themselves of leftover sets from a few years of lagging sales.
Harold Evensky and Shaun Pfeiffer find that alpha generated in recessions doesn't overcome lagging performance across business cycle.
But the stock still lags Anheuser-Busch and SABMiller this year.
And now a team of researchers find that "social jet lag" may also be linked with higher obesity rates.
Airbus orders surge in November but lag Boeing.
The AAP Monthly StatShot for March 2012 shows children's book sales up 46.6% over the same period in 2011 – an especially impressive figure given the lag in adult sales, down 11.6% at the houses that report numbers to the AAP.
Although ticket sales have lagged, Dolphins fans remain passionate and expressive.
According to a new report released by the group As You Sow, the US lags far behind other nations in recycling packaging materials.
ADDIS ABABA, Ethiopia — Most African countries are lagging behind in achieving the United Nations' Millennium Development Goals and will not make as much progress in health, nutrition and sanitation as had hoped, UN officials said.
Math, science scores for some US students improving, but lag behind many in Asia , Europe.
Timber backlog hits Cass County, sales lag.
A n international study shows American students perform better than the global average, but still lag behind many of their peers in Asia and Europe.
As it often does when interest lags or a new 007 is inaugurated, the Bond franchise is once again getting back to its roots.

In science:

Lagged autocorrelation functions of rt and USD/DEM returns, respectively (top panels).
A simple model of price formation
The first interesting fact is that the lagged Fibonacci and substract-with-carry leads to the same deviations up to the order of 2−m , which is usually of the order of 10−9 .
On the quality of random number generators with taps
As expected, in this example the classical cross-correlation function shows a significant correlation after a lag of π/2 (Fig. 3A).
Nonlinear analysis of bivariate data with cross recurrence plots
All functions (A)–(D) detect the correlation after a lag of π/2.
Nonlinear analysis of bivariate data with cross recurrence plots
Our measures of complexity exhibit the following: RR and L exhibit maxima at a lag of about 0.05 for RR+ / L+ and RR− / L− and additionally at 0.45 and −0.32 for RR− / L− (Figs. 7A, E).
Nonlinear analysis of bivariate data with cross recurrence plots