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duration

[doo-rey-shuhn, dyoo-]

noun

the length of time something continues or exists (often used with the).

continuance in time.

(in the philosophy of Bergson) a temporal continuum, intuitively known, within which the élan vital operates.

Origin:
1350–1400; Middle English < Medieval Latin dūrātiōn- (stem of dūrātiō), equivalent to Latin dūrāt(us) (past participle of dūrāre to last; see dure²) + -iōn- -ion

Related forms

du·ra·tion·al, adjective

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Link To duration

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Duration is always a great word to know.

So is doohickey. Does it mean:

a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.

a gadget; dingus; thingumbob.

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Example Sentences

The fund seeks to maintain an effective duration of three and one-half to seven years under normal market conditions.

Spring and autumn are pleasant but short in duration.

Largely thanks to the entertainment industry's lawyers and lobbyists, copyright's scope and duration have vastly increased.

EXPAND

The fund seeks to maintain an effective duration of three and one-half to seven years under normal market conditions.

Spring and autumn are pleasant but short in duration.

Largely thanks to the entertainment industry's lawyers and lobbyists, copyright's scope and duration have vastly increased.

However, the frequency and duration of hurricanes overall have stayed about the same.

In the first case, there was little to remember, so your brain collapsed the feeling of duration.

Here are some tips for saving battery life that will keep your laptop alive for the duration of your journey.

In people who already have colds, exercise has no effect on the illness' severity or duration of the infection.

At this point leaning toward law for this reason alone even though dreading the three or four year duration.

The strength and duration of protection has expanded enormously.

The measurement is based on a storm's wind speed, the duration of those winds, and the duration of the storm.

That's an important question, because the duration of an earthquake helps determine how much damage it will do.

The plane's approximately eight hour duration and ability to fly low and slow make it a handy espionage platform.

The longer a person is in darkness the longer the duration of melatonin secretion.

When they rise, consumers prolong payments and the duration of these securities lengthens.

The duration of the volcano's activity is also of concern.

He was identified as the one human being who had traveled the fastest speed for the longest duration.

Each line and space on the staff correspond to a note-the sign used to signal the duration and pitch of a sound.

And they used dozens of different war scenarios to calculate the magnitude and duration of the cooling.

When no eye movement was involved, they were able to gauge the duration of display of the first digit more accurately.

The depth and duration of this seasonal flooding varies.

Addition of polymers to the peptides improves their pharmacological properties, such as the duration of drug activity.

Research has not pinpointed an exact duration of antibiotic therapy.

The way that the crisis has centred on the banking industry also explains its duration.

Males protect the egg during the absence of their mates, a duration of time that can extend to two months.

Future studies should help standardize the timing and duration of clotbusting drug administration.

But regardless of the duration of interruption, many of the precautions are the same.

There have been some high-profile deals, though the bonds have short duration.

And they can help us understand more about the frequency, intensity and duration of storms.

For the duration of its cycle, though, this deep-sea carbon is locked away.

These herpetological mummies remain in their cocoons for the duration of the dry season.

The level and duration of withdrawals would be set by the government and would be the same as under today's unemployment system.

The recession velocity of an emitting object cannot be imparted to its light waves for the duration of transit.

The labour force participation rate has not been rising, and the average duration of unemployment continues to increase.

The information will be based on the destination and duration of stay.

Both the mean and median duration of unemployment increased.

Please explain how you could miscalculate amount of underwear needed for a trip of known duration.

For the promoters who conceive and execute campaigns to raise public awareness and research dollars, duration is.

Because of the short duration of tasty ripeness, durians are expensive, and purchasing one is a solemn.

Basically anything that is plugged in or charged is off-limits for the duration.

The duration of the storm was not above forty minutes, but in that time it did.

It also provides insurance for the duration of the rental and a replacement car if there is an accident.

Different versions glowed for a duration ranging from seconds to.

It doesn't mat ter whether you judge by extremes, or averages, or by the duration of cold.

Both in single duration and in sequence, fake meetings go on forever.

As you decrease the power, the flash duration also decreases, roughly in line with the power.

The duration of melatonin secretion is the signal for the duration of the night.

He sat there with that egg for the entire duration of my photo shoot, which was quite long.

They are all ready and only await the popular vote of fashionable women to dictate their duration.

The connections at each end create a channel reserved for the duration of a call.

The second was in extending the duration of each song to accommodate the dance floor jolly mood of his audience.

The health effects caused by radiation exposure depend on its level, type and duration.

Pre-set whole-body and full-body workouts don't specify rest time or expected duration.

He is to prevent gangsters from sabotaging the operation for the duration of a price war.

We even toyed with hiring a live-in for the duration of the interview season.

That's because the duration of the event you can hide depends on how long you can delay the light.

Ekman has developed programs to train people to recognize these short duration expressions.

He did not specify where or when the attacks took place, their duration or the amount of money demanded.

Starrett was going to have his problems holding the lion up for the duration of the fight.

Several months later, we've grown accustomed to the unexpectedly long duration of those moments.

The siesta and mortality in the elderly: effect of rest without sleep and daytime sleep duration.

Adding in the board game expansion packs, of which there are many, increases the complexity and duration considerably.

Chase had wanted an even longer duration of blackness at the show's conclusion.

It seems that the amount of pre-medical-school training required, and the duration of medical studies, vary widely by country.

If the duration of funding has not changed much, its source has.

Newer implementations allow the user to set the duration of the search.

It can meet the purpose of asking students to write within a variety of genres over the duration of the course.

Like the duration of the downturn itself, how well supply chains will endure is anyone's guess.

Based on that brightness and the duration of the flash, researchers conclude that the star.

The ability is limited, but recharges fairly quickly, and more collectible power-ups will allow you to extend its duration.

The duration of the test would need to track burning of and consumption of calories on days with no work out at all also.

We'll be there for the entire duration this year, representing.

The global housing boom has been unusual in its strength, duration and ubiquity.

Schawinski says the duration of the ultraviolet glow indicates the size of the star.

In either case, the size and duration of mismatches can be influenced by government policy.

Looking at the duration and the size of the vortex in the.

Any limited or short duration copyright protections do not take into account revenue potential over the long term.

At the same time, the number, size and duration of operations has been much greater than planned.

The duration of their glory and the extent of their power varied,but they all arose within a specific order.

Several proposals for reducing their frequency, duration and severity were discussed.

The duration of these episodes is as unpredictable as their arrival.

The duration of the pain did not seem to make much difference.

COLLAPSE

Collins

World English Dictionary

duration (djʊˈreɪʃən)

—n
	the length of time that something lasts or continues

[C14: from Medieval Latin dūrātiō, from Latin dūrāre to last]

du'rational

—*adj*

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source

Etymonline

Word Origin & History

duration

late 14c., from O.Fr. duration, from M.L. durationem (nom. duratio), from L. durare "harden" (see endure). Phrase for the duration (1916) originally refers to British enlistment in World War I.

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Matching Quote

"To finish the moment, to find the journey's end in every step of the road, to live the greatest number of good hours, is wisdom. It is not the part of men, but of fanatics, or of mathematicians, if you will, to say, that, the shortness of life considered, it is not worth caring whether for so short a duration we were sprawling in want, or sitting high. Since our office is with moments, let us husband them."

-Ralph Waldo Emerson

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