(40 ILCS 5/17-111) (from Ch. 108 1/2, par. 17-111)
Sec. 17-111. Reversionary pension.
"Reversionary pension": A pension computed on an actuarially equated basis and payable to a contributor's beneficiary designated under a prescribed option before retirement, commencing upon the death of the contributor after retirement on pension and continuing thereafter during the life of the beneficiary.
(Source: Laws 1963, p. 161.)