adj. Being between the age of 70 and 79, inclusive. In one's eighth decade.
adj. Of or relating to a septuagenarian.
n. One who is between the age of 70 and 79, inclusive.
the GNU version of the Collaborative International Dictionary of English
n. A person who is seventy years of age; a septuagenary.
The Century Dictionary and Cyclopedia
n. A person seventy years of age, or between seventy and eighty.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. someone whose age is in the seventies
Word Usage
"Does his reference to me as a "septuagenarian" imply that I am unqualified to state facts and undeserving to benefit from Social Security and Medicare that I pay for with "earned income?""