septuagenarian /sɛpˌtuːwəʤəˈnerijən/ Brit /ˌsɛpˌtjuəʤəˈnɛəriən/ noun plural septuagenarians
/sɛpˌtuːwəʤəˈnerijən/ Brit /ˌsɛpˌtjuəʤəˈnɛəriən/
noun
plural septuagenarians
Learner's definition of SEPTUAGENARIAN
[count]
: a person who is between 70 and 79 years old*70到79岁之间的人