Usage Note
Siniestralidad is a technical and journalistic term for the rate or frequency of accidents, particularly road accidents (siniestralidad vial) or workplace incidents. It derives from siniestro (accident, disaster). English learners should note there is no single-word English equivalent — 'accident rate' or 'casualty rate' is used depending on context.
Examples
"La siniestralidad laboral bajó este año."
Natural Translation
The workplace accident rate fell this year.
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