reversionary annuity is a noun meaning "an annuity payable to one person in the event that someone else is unable to receive it". It carries one recorded sense.
an annuity payable to one person in the event that someone else is unable to receive it
Definitions, synonyms and semantic relations for reversionary annuity come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.