Final answer:
The legal doctrine res ipsa locquitur means 'the thing speaks for itself'. It refers to a situation where the occurrence of an accident or injury implies negligence without direct evidence of how it happened.
Step-by-step explanation:
The legal doctrine res ipsa locquitur means The thing speaks for itself. It is a Latin phrase used in law to describe a situation where the occurrence of an accident or injury implies negligence on the part of the person or entity in control of the thing or instrument that caused the harm. This doctrine allows the injured party to establish a presumption of negligence without having to provide direct evidence of how the injury occurred.