n.
Pronunciation: ( ˌ )sep- ˌ tü- ə -j ə - ' ner- ē - ə n, - ˌ tyü-, - ˌ chü-
Function: noun
Etymology: Late Latin septuagenarius seventy years old, from Latin, of or containing seventy, from septuageni seventy each, from septuaginta
Date: 1805
: a person whose age is in the seventies
– septuagenarian adjective