death rate (mortality rate)

  • A ratio of the number dying in a given period (usually one year) to the number of living at the beginning of the year. Usually the group involved is all of one age.

    Internal Revenue Service 1

1Internal Revenue Service, Internal Revenue Manual 4.42.6 Glossary, http://­www.irs.gov/­irm/­part4/­irm_04-042-006.html (last accessed Dec. 22, 2009).