septuagenarian
/sɛpˌtuːwəʤəˈnerijən/
Brit
/ˌsɛpˌtjuəʤəˈnɛəriən/
noun
plural
septuagenarians
/sɛpˌtuːwəʤəˈnerijən/
Brit
/ˌsɛpˌtjuəʤəˈnɛəriən/
noun
plural
septuagenarians
Britannica Dictionary definition of SEPTUAGENARIAN
[count]
:
a person who is between 70 and 79 years old
