plural of impossible event

plural of certain event

plural of quick time event

plural of transient luminous event

plural of mass extinction event

plural of extinction level event

(astrophysics) The gravitational sphere of a black hole within which the escape velocity is greater than the speed of light. / (by extension) A point of no return.

(medicine) Any unanticipated or unusual event in a medical setting which results in death or serious physical injury to a person or persons, specifically including limb loss or gross motor function.

plural of event horizon

(taxonomy) a moment when the evolutional lineage splits, starting history of a new species.