The phrase "a spontaneous occurrence" is correct and usable in written English.
It can be used to describe an event or situation that happens naturally and without premeditation.
Example: "The festival was a spontaneous occurrence that brought the community together unexpectedly."
Alternatives: "an unplanned event" or "a sudden happening".
Once a spontaneous occurrence between audience and performer, these days it is a largely unwelcome aspect to pop and rock gigs as it is of no surprise.
According to the charging papers filed against Masina, evidence suggests the July 26 incident was "neither a one-time event nor a spontaneous occurrence, and therefore raises concerns about the safety of others with whom the defendant may have contact".
The origin of CWD is unknown but may have been either a spontaneous occurrence or caused by interspecies transmission of scrapie or another prion agent.
The fact that ONJ occurs as both a wound-healing phenomenon and a spontaneous occurrence supports our suggestion that the pathogenesis is probably multifactorial.
Gene expression data revealed that the process of cellular fragmentation is actively controlled by proteins rather than being a spontaneous occurrence [ 53].
Among the shared disease characteristics are a spontaneous occurrence of tumours, by which females are primarily affected, and a hormonal influence on tumour development (e.g. oestrogen and progesterone) (as reviewed by Queiroga et al. 2011 [ 9]).
Awkward!) Like most good public nudity, Poetry in the Raw took its inspiration from a private, spontaneous occurrence, in this case when a friend of the organizer, Missie Peters, read a poem naked at a party.
Such dreams cannot be controlled or forced to come through; it is a purely spontaneous occurrence.
Is that so bad when it's an irregular, spontaneous occurrence?
We have confirmed by trial calculations that B < A leads to weak coupling during interseismic periods, and B > A leads to spontaneous occurrence of slow slip events (corresponding to the result by Yoshida and Kato (2003)).
There is no spontaneous occurrence of a functional presequence as a result of an exchange with other nuclear encoded genes as this sequence motif is not found anywhere else in the human or macaque genomes.
