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Definition of Sexagenary
1. a. Pertaining to, or designating, the number sixty; poceeding by sixties; sixty years old.
2. n. Something composed of sixty parts or divisions.
Medical Definition of Sexagenary
1.
1. Something composed of sixty parts or divisions.
2. A sexagenarian.
Pertaining to, or designating, the number sixty; poceeding by sixties; sixty years old. Sexagenary arithmetic. See Sexagesimal.