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Webster 1913 Edition

Sexagenary

Sex-ag′e-na-ry

,
Adj.
[L.
sexagenarius
, fr.
sexageni
sixty each, akin to
sexaginta
sixty,
sex
six: cf.
sexagénaire
. See
Six
.]
Pertaining to, or designating, the number sixty; poceeding by sixties; sixty years old.
Sexagenary arithmetic
.
See under
Sexagesimal
.
–
Sexagenary scale
, or
Sexagesimal scale
(Math.)
,
a scale of numbers in which the modulus is sixty. It is used in treating the divisions of the circle.

Sex-ag′e-na-ry

,
Noun.
1.
Something composed of sixty parts or divisions.
2.
A sexagenarian.
Sir W. Scott.

Webster 1828 Edition

Sexagenary

SEX'AGENARY

,
Adj.
[L. sexagenarius, from sex, six, and a word signifying ten, seen in viginti; bis-genti.] Designating the number sixty; as a noun, a person sixty years of age; also, something composed of sixty.

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