at length

a) For a long time.

He went on at length about his supposed qualifications.

b) At last, finally.

She led us through the tunnels for some time, until at length we reached a small door in the rock.


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  • Length — is the long dimension of any object. The length of a thing is the distance between its ends, its linear extent as measured from end to end. This may be distinguished from height, which is vertical extent, and width or breadth, which are the… …   Wikipedia

  • Length contraction — Length contraction, according to Hendrik Lorentz, is the physical phenomenon of a decrease in length detected by an observer in objects that travel at any non zero velocity relative to that observer. This contraction (more formally called Lorentz …   Wikipedia

  • Length — (l[e^]ngth), n. [OE. lengthe, AS. leng[eth], fr. lang, long, long; akin to D. lengte, Dan. l[ae]ngde, Sw. l[ a]ngd, Icel. lengd. See {Long}, a. ] 1. The longest, or longer, dimension of any object, in distinction from {breadth} or {width}; extent …   The Collaborative International Dictionary of English

  • Length (disambiguation) — Length in its basic meaning is the long dimension of an object.Length may also refer to: *Length (phonetics), in phonetics **Vowel length **Geminate consonant *Arc length *Length of a module, in abstract algebra *Length of a polynomial *Vector… …   Wikipedia

  • Length constant — is a constant used in neurobiology signified by the Greek letter lambda ( lambda;).In an action potential (or in a passive spread of signal) in a neuron, the constant lambda; is: lambda = sqrt{frac {r {m {(r {i}+ r {o}) where rm is the resistance …   Wikipedia

  • Length at the waterline — Length at the waterline, often abbreviated as lwl,w/l, w.l. or wl is term used to describe the length of a ship. This term refers to the length of a vessel along the waterline. In a ship with raked stems, naturally this length changes as the… …   Wikipedia

  • Length between perpendiculars — Length between perpendiculars, often abbreviated as p/p, p.p., pp or LBP is a term describing the length of a ship. LBP refers to the length of a vessel along the waterline from the forward surface of the stem, or main bow perpendicular member,… …   Wikipedia

  • Length of stay — (LOS) is a term commonly used to measure the duration of a single episode of hospitalization. Inpatient days are calculated by subtracting day of admission from day of discharge. However, persons entering and leaving a hospital on the same day… …   Wikipedia

  • Length overall — Length overall, often abbreviated as (LOA, o/a, o.a. or oa) refers to the maximum length of a vessel from the two points on the hull most distant from each other, measured perpendicular to the waterline. See also *Length between perpendiculars… …   Wikipedia

  • Length time bias — is a form of selection bias, a statistical distortion of results which can lead to incorrect conclusions about the data. Length time bias can occur when the lengths of intervals are analysed by selecting intervals that occupy randomly chosen… …   Wikipedia

  • Length — Length, v. t. To lengthen. [Obs.] Shak. [1913 Webster] …   The Collaborative International Dictionary of English

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