Which term best describes the death of tissue due to a loss of blood supply?

The term that best describes the death of tissue due to a loss of blood supply is "infarct." An infarct refers specifically to an area of necrosis (tissue death) that occurs when blood flow is obstructed, leading to a deficiency in oxygen and nutrients necessary for tissue health. This can occur in various organs and generally results from conditions such as thrombosis or embolism that prevent blood from reaching specific tissue areas.

While "ischemia" refers to the condition of reduced blood flow that can lead to an infarct, it does not specifically denote the actual death of tissue. Instead, ischemia describes the state prior to tissue death. The term "myocardial infarction" is a specific type of infarct that occurs in the heart muscle itself, resulting from blocked blood supply to that area, but does not cover the broader concept of infarcts occurring in other tissues.

Laceration refers to a tear or cut in the skin or flesh and does not pertain to the process of tissue death due to blood supply issues. Therefore, the term "infarct" is the most accurate descriptor for this phenomenon.