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An annuity in which the annuitant selects a certain number of years during which he/she will receive payments. For example, an annuitant may elect to receive annuity payment each month for 20 years. This allows the annuitant higher payments each month, but it is nevertheless less common than life annuities, which provide payments for the remainder of the annuitant's life. Using period-certain annuities as retirement packages may appeal to persons who do not expect to live the full term of the annuity and/or persons who have another source of income (such as another annuity) in retirement.