/sek saj"euh ner'ee/ , adj., n., pl. sexagenaries .
adj.
1. of or pertaining to the number 60.
2. composed of or proceeding by sixties.
3. sexagenarian.
n.
4. a sexagenarian.
[ 1525-35; sexagenarius, equiv. to sexagen ( i ), distributive of sexaginta sixty + -arius -ARY ]