What is Accident Insurance?

Legal Definition
is that form of insurance which undertakes to indemnify the assured against expense, loss of time, and suffering resulting from accidents causing him physical injury, usually by payment at a fixed rate per week while the consequent disability lasts, and sometimes iucluding the payment of a fixed sum to his heirs in case of his death by accident within the term of the policy. See Employers' Liability Assur. Corp. v. Merrill, 155 Mass. 404, 29 N. E. 529.
-- Black's Law Dictionary