• WordNet 3.6
    • n occurrence an event that happens
    • n occurrence an instance of something occurring "a disease of frequent occurrence","the occurrence (or presence) of life on other planets"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: An average adult produces about half a litre of flatulent gas per day, resulting in an average of about fourteen occurrences of flatulence a day
    • Occurrence A coming or happening; as, the occurence of a railway collision. "Voyages detain the mind by the perpetual occurrence and expectation of something new."
    • Occurrence Any event or incident; esp., one which happens without being designed or expected; as, an unusual occurrence, or the ordinary occurrences of life. "All the occurrence of my fortune."
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: The early occurrence of a fetus yawning is at eleven weeks after conception
    • n occurrence The act of occurring; occasional presentation.
    • n occurrence An incident or accidental event; that which happens without being designed or expected; an event; a happening: as, an unusual occurrence; such occurrences are not uncommon.
    • n occurrence Happenings collectively; course of events.
    • n occurrence Eccles., the coincidence of two or more festivals on the same day. See occur, v. i., 5, and concurrence, n., 4. Synonyms 2. Incident, Circumstance, etc. (see event); Occasion, Emergency, etc. (see exigency).
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: The saying 'once in a blue moon ' refers to the occurrence of two full moons during one calendar month. The last two occurred in January & March 1999. The next one isn't until the end of 2001.
    • ns Occurrence anything that occurs: an event, esp. one unlooked for or unplanned: occasional presentation
    • ***


  • H. L. Mencken
    “Faith may be defined briefly as an illogical belief in the occurrence of the improbable.”
  • Alexander Chase
    Alexander Chase
    “A shocking occurrence ceases to be shocking when it occurs daily.”
  • Ambrose Bierce
    “An accident is an inevitable occurrence due to the actions of immutable natural laws.”
  • Albert Einstein
    “Occurrences in this domain are beyond the reach of exact prediction because of the variety of factors in operation, not because of any lack of order in nature.”


Webster's Revised Unabridged Dictionary
Cf. F. occurrence,. See Occur
Chambers's Twentieth Century Dictionary
Fr.,—L. occurrĕreob, towards, currĕre, to run.


In literature:

The ladies looked sorely affrighted; they had from the first, for it was all but the occurrence of an instant.
"The Free Lances" by Mayne Reid
As previously mentioned, I do not maintain that an undifferentiated stage is of universal occurrence.
"The Sexual Life of the Child" by Albert Moll
The flexion and adduction of the limb favour the occurrence of dislocation.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition." by Alexander Miles
This incident was furnished by an occurrence which took place in the family of Walter the Tiler.
"Richard II" by Jacob Abbott
And the same day another equally perilous occurrence took place.
"The Roman History of Ammianus Marcellinus" by Ammianus Marcellinus
Analogous cases are of such frequent occurrence with plants that they do not strike us with sufficient surprise.
"The Variation of Animals and Plants Under Domestication, Volume II (of 2)" by Charles Darwin
Reconnaissances and raids were of almost daily occurrence.
"The Story of the Great War, Volume III (of VIII)" by Various
The year after this occurrence the law was altered and some of the severest restrictions on the Catholics removed.
"Lippincott's Magazine, Vol. 20, August 1877" by Various
I quite realise that the occurrence of to-day must have been a very trying one for you, as trying as it was unexpected.
"East of the Shadows" by Mrs. Hubert Barclay
The Bible, too, says nothing about such an occurrence.
"Bible Romances" by George W. Foote
As to their occurrence, he or she is the final and absolute authority.
"Religion & Sex" by Chapman Cohen
It is not of common occurrence in cattle.
"Special Report on Diseases of Cattle" by U.S. Department of Agriculture
Doubtless an omniscient mind would realize a reason for every accidental and apparently insignificant occurrence of actual life.
"Materials and Methods of Fiction" by Clayton Hamilton
Hence, on the coast of Portugal, snow is of infrequent occurrence; in Lisbon it never snowed from 1806 to 1811.
"History of the Intellectual Development of Europe, Volume I (of 2)" by John William Draper
Then a very unexpected occurrence happened.
"Psychic Phenomena" by Edward T. Bennett
Attacks of this kind are of frequent occurrence in summer and autumn in almost all countries.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3" by Various
Liability to have the attention fastened on special incidents, and so diverted from other parts of the occurrence.
"Logic, Inductive and Deductive" by William Minto
This recent record suggests that occurrences in southern Kansas are probable.
"Fishes of Chautauqua, Cowley and Elk Counties, Kansas" by Artie L. Metcalf
They asked him the reason of such an unusual occurrence.
"The Life or Legend of Gaudama" by Right Reverend Paul Ambroise Bigandet
What has just been supposed is sometimes a real {109} occurrence.
"The English Language" by Robert Gordon Latham

In poetry:

I don't think it hurts your endurance,
Except when a feller just soaks,
For baths is a common occurrence
Among the society folks.
"The Midwinter Bath" by Bruce Kiskaddon

In news:

The far ranging occurrence of the symptoms and time of year it happened, made it hard to believe that herbicides were the cause.
This weekend, around the country, you will see a strange occurrence.
They say these types of incidents are regular occurrences.
A daily occurrence that always makes me hungry.
Shreveport, La — In the past few months, robberies seems to be a daily occurrence in Shreveport, but actually through October 31 of this year, robberies are only up by 58 from the same period last year.
Expect nothing, and maybe you'll get that little outta-nowhere sumpin-sumpin that turns an otherwise unfulfilling occurrence into a vaguely rewarding experience.
The transition of a major ministry from husband to wife is a rare occurrence in the history of US Pentecostalism.
This is a very unusual occurrence because it only happens in years '01- '12 in each century.
Within the span of nine hours on April 26, there were two significant occurrences involving Oklahoma State quarterbacks.
According to school district spokesman Jeff Warner, the girl ran into Northland High School and reported the occurrence around 4 pm Tuesday.
"The network has recovered less than 10 manatees since 1980, but sightings and occurrences have become more frequent over the last five years or so," Whitehead said.
Some are rare, but some are everyday occurrences.
This program must support the timely IT operations recovery following the occurrence of an IT outage or disaster.
This isn't a new occurrence for me.
Everett YMCA staff and patrons often blame a ghost they call "George" for strange occurrences that have no clear explanations.

In science:

Such occurrences can be labeled as the arrow of time.
Relativistic Quantum Non-Locality
Assume that there exists an occurrence of τ in π that includes ir .
Avoiding maximal parabolic subgroups of S_k
M [x := V ] is the term resulting from substituting free occurrences of variable x with V . A call-by-value computation consists of successively applying the βv reduction rule to a subterm.
From Syntactic Theories to Interpreters: A Specification Language and Its Compilation
In summary, at zero temperature there is not a safe criterion to discuss the possibility of the occurrence of the RS phase in the RAQ chains.
Breakdown of the perturbative renormalization group for S >= 1 random antiferromagnetic spin chains
The probability of occurrence of a microstate C in a closed system depends on the energy of the microstate and the temperature of the system.
An Introduction to Monte Carlo Simulation of Statistical physics Problem
The key point is that importance sampling helps you pick up rare events - events that have very low probability of occurrence.
An Introduction to Monte Carlo Simulation of Statistical physics Problem
Alternately, we can take an operational approach. P (A) is obtained by observing the frequency of occurrence of A: repeat the experiment some N times and let NA be the number of times the event A occurs.
Monte Carlo: Basics
An important discrete distribution, called the Poisson distribution, arises in the context of random occurrences in time.
Monte Carlo: Basics
In an interval ∆t → 0 positioned at any time t, there is either one occurrence with probability λ∆t, or no occurrence with probability 1 − λ∆t.
Monte Carlo: Basics
It is shown that occurrence of non-Gaussian tails is quite a common case, which does not require any special conditions to be realized.
Tails of probability density for sums of random independent variables
What I am going to show is that the occurrence of such a tail is a generic feature of the problem.
Tails of probability density for sums of random independent variables
The occurrence of this phenomenon has been verified quantitatively.
Closed String Tachyons in Non-supersymmetric Heterotic Theories
The occurrence of the norm however is not difficult to understand.
Universal bounds on the selfaveraging of random diffraction measures
This left some room for scepticism and so it is important that there is now a rigorous result by Dafermos showing the development of weak null singularities from regular initial data and the occurrence of the associated effect of mass inflation.
Applications of the theory of evolution equations to general relativity
Now, if the propagator stands on the first position after the change, the second occurrence of the propagator in another Zfunc has to be as a second argument.
AMEGIC++ 1.0, A Matrix Element Generator In C++