Definition of TISSUE PLASMINOGEN ACTIVATOR. : a clot-dissolving enzyme with an affinity for fibrin that is produced naturally in blood vessel linings and is used in a genetically engineered form to prevent damage to heart muscle following a heart attack and reduce neurological damage following ischemic stroke âabbreviation TPA.ADVERTISEMENT. a clot-dissolving enzyme with an affinity for fibrin that is produced naturally in blood vessel linings and is used in a genetically engineered form to prevent damage to heart muscle following a heart attack and reduce neurological damage following ischemic stroke âabbreviation TPA. ADVERTISEMENT.
Causation principle refers to the relation between the cause or an event and the effect or a second event. The second event is the physical result of the first.      â¦ . Torrey Garcia.
Correlation is a statistical measure (expressed as a number) that describes the size and direction of a relationship between two or more variables. A correlation between variables, however, does not automatically mean that the change in one variable is the cause of the change in the values of the other variable.Causation indicates that one event is the result of the occurrence of the other event; i.e. there is a causal relationship between the two events.f the correlation coefficient has a positive value (above 0) it indicates a positive relationship between the variables meaning that both variables move in tandem, i.e. as one variable decreases the other also decreases, or when one variable increases the other also increases.