noun
definition
An actual instance when a situation occurs; an event or happening.
definition
(grammar) The lexical aspect (aktionsart) of verbs or predicates that change in or over time.
Examples of occurrence in a Sentence
It's not a frequent occurrence.
In some tropical stations, at certain seasons of the year, thunder is almost a daily occurrence.
Certain acid fermentations are of common occurrence.
When mushrooms are gathered for sale by persons unacquainted with the different species mistakes are of frequent occurrence.
As Hestia had her home in the prytaneum, special temples dedicated to her are of rare occurrence.
The Lower Oolite is distinguished by the occurrence in it of some coal-seams, one of which, 31 ft.
Co-operation of the two factors appears to supply a causal theory of the occurrence of evolution; the suggestion of their co-operation and the comparison of the possible results with the actual achievements of breeders in producing varieties were the features of Charles Darwin's theoretical work which made it a new beginning in the science of biology, and which reduced to insignificance all earlier work on the theory of evolution.
So long as we confine our attention to one or two individuals, we fail to detect any order in the occurrence of variations; but when we examine large numbers we find that it is possible to arrange them in an orderly series, which can be easily and simply described.
The analogy possibly may be extended to such cases as the occurrence of flora or fauna with alpine characters on the summits of mountains separated by broad zones of tropical climate.
Hence, I am morally obligated to see to its occurrence.
It is plain that whilst the existence of variation can be demon strated and the occurrence of evolution established by induction and deduction, the part played by selection must remain largely theoretical.
Divorce was an easy matter, and of frequent occurrence; but, as a rule, a divorced wife would not marry again without the consent of her former husband.
In some islands human sacrifices were of frequent occurrence; in others they were offered only on very rare and exceptional occasions, when the demand was made by the priests for something specially valuable.
The prevalence of elephantiasis and the occurrence of leprosy, for instance, in Hawaii, would seem to point at least in some places to a racial taint, due perhaps to the unbridled licentiousness of past generations.
As soon as the news of his banishment spread through the city, the astonishment of the people was quickly exchanged for a spirit of irresistible fury, which was increased by the occurrence of an earthquake.
The occurrence of anchovies in the English Channel has been carefully studied at the laboratory of the Marine Biological Association at Plymouth.
It is noteworthy that a molar from the Tertiary of India has been referred to Agriochoerus, a determination which if correct probably indicates the occurrence of Oreodonts in the unknown Tertiary deposits of Central Asia.
This island is composed of micro-granite with riebeckite, of great interest on account of the rare occurrence of this type in Britain.
The German portion of the peninsula is generally similar to that of western Jutland, the main difference lying in the occurrence of islands (the North Frisian) off the west coast in place of sand-bars and lagoons.
Erratic blocks are of frequent occurrence in south Jutland.
The largest occurrence of natural soda hitherto known is that in 'Owen's Lake and other salt lakes situated in eastern California.
The Upper Trias has been definitely identified by the occurrence of Halobia and other fossils; while in the higher beds of the series marine forms belonging to the middle and upper Jurassic have been found.
Among themselves the Afghans are quarrelsome, intriguing and distrustful; estrangements and affrays are of constant occurrence; the traveller conceals and misrepresents the time and direction of his journey.
The history of the Afghan countries under the Mongols is obscure; but that regime must have left its mark upon the country, if we judge from the occurrence of frequent Mongol names of places, and even of Mongol expressions adopted into familiar language.
It is not unlikely that such changes have in past time occurred; and if so an explanation is afforded of the occurrence of allied forms of freshwater dolphins (Platanista) and of many other animals in the two rivers and in the Brahmaputra.
One of the most interesting facts in the history of the Gondwana series is the occurrence near the base (in the Talchir group) of large striated boulders in a fine mud or silt, the boulders in one place resting upon rock (of Vindhyan age) which is also striated.
Over the greater part of this region rain is of rare occurrence; and not infrequently more than a year passes without a drop falling on the parched surface.
The Philippines, politically speaking, and the Philippines, zoologically speaking, are not identical areas; Balabac, Palawan and the Calamianes being characterized by the occurrence of numerous Bornean forms which are conspicuously absect from the remaining islands.
Other discoveries include a few new squirrels and bats, and the occurrence of a lemur (Nycticebus tardigradus) in Tawi Tawi.
The occurrence of change, either periodic or irregular, in the colour of individual stars, has been suspected by many observers; but such a colour-variability is necessarily very difficult to establish.
Gaol deliveries were of rare occurrence, even when tardy trial ended in acquittal release was delayed until illegal charges in the way of fees had been satisfied.
The first contains cases of the occurrence of the quality under investigation, colour, e.g., or heat, in varying combinations.
The chief geological formations of Buru are crystalline slate near the north coast, and more to the south Mesozoic sandstone and chalk, deposits of rare occurrence in the archipelago.
The Latin term " tractatus," and its derivatives, though of occasional occurrence in this sense from the 13th century onwards, only began to be commonly so employed, in lieu of the older technical terms " conventio publica," or " foedus," from the end of the r7th century.
Individuals reproduce unexpectedly the traits of earlier ancestors, and ethnologists and criminologists frequently explain by "atavism" the occurrence of degenerate species of man; but the whole subject is complicated by other possible explanations of such phenomena, included in the scientific study of normal "variation."
It is true that these fossils are not invariably present in every occurrence of Cambrian strata, but this fact notwithstanding, the threefold division holds with sufficient constancy.
The common occurrence of red strata has been cited in support of this view.
In 1438-1439 the plague was in Germany, and its occurrence at Basel was described by Aeneas Sylvius, afterwards Pope Pius II.
In Paris about this time plague was an everyday occurrence, of which some were less afraid than of a headache (Borgarucci).
The sudden reversal of that long process is therefore a very remarkable occurrence.
The first case is the singular occurrence of three deaths at Vienna in October 1898.
The next occurrence of special interest is the appearance of plague in Portugal in 1899, after an absence of more than 200 years.
Flexner and C. Hunter Stewart, pointing out that the evidence, so far from showing that Mr Haffkine's laboratory was to blame, made it clear to those acquainted with bacteriological work that it could have had nothing to do with the occurrence.
Returning to the court of Uzbeg, at Sarai on the Volga, he crossed the steppes to Khwarizm and Bokhara; thence through Khorasan and Kabul, and over the Hindu Kush (to which he gives that name, its first occurrence).
These examples will show that mere statistics of the occurrence of words prove little, and that we must begin by looking to the subject and character of each poem.
He is the first to introduce the name of Attila, and dates the occurrence 453.
As a rule this disease is due to a lack of tannin (hence its more frequent occurrence in white wines).
Confirmation of this is afforded by the occurrence in the mountains of Java of a pariah-like dog which has reverted to an almost completely wild condition; and likewise by the fact that the old voyagers met with dogs more or less similar to the dingo in New Guinea, New Zealand and the Solomon and certain other of the smaller Pacific islands.
The flamens were held to be elected for life, but they might be compelled to resign office for neglect of duty, or on the occurrence of some ill-omened event (such as the cap falling off the head) during the performance of their rites.
Basic copper phosphates are of frequent occurrence in the mineral kingdom.