tontine

英 [tɒn'tiːn; 'tɒn-] 美['tɑntin]

1. a form of life insurance whereby on the death or default of a participant his share is distributed to the remaining members

2. an annuity scheme wherein participants share certain benefits and on the death of any participant his benefits are redistributed among the remaining participants; can run for a fixed period of time or until the death of all but one participant