Origin of octogenarian1 1805–15; < Latin octōgēnāri ( us ) comprising eighty, eighty years old (equivalent to octōgēn ( ī ) eighty each + -ārius -ary ) + -anDiscover More Example Sentences The octogenarian president’s bent posture and halted speaking manner didn’t reassure many Dem...
Definition of octogenarian noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.