Hypertext Webster Gateway: "Sexagenary"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Sexagenary \Sex*ag"e*na*ry\, a. [L. sexagenarius, fr. sexageni
sixty each, akin to sexaginta sixty, sex six: cf.
sexag['e]naire. See {Six}.]
Pertaining to, or designating, the number sixty; poceeding by
sixties; sixty years old.
{Sexagenary arithmetic}. See under {Sexagesimal}.
{Sexagenary}, or {Sexagesimal}, {scale} (Math.), a scale of
numbers in which the modulus is sixty. It is used in
treating the divisions of the circle.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Sexagenary \Sex*ag"e*na*ry\, n.
1. Something composed of sixty parts or divisions.
2. A sexagenarian. --Sir W. Scott.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Sexagesimal \Sex`a*ges"i*mal\, a. [Cf. F. sexag['e]simal.]
Pertaining to, or founded on, the number sixty.
{Sexagesimal fractions} or {numbers} (Arith. & Alg.), those
fractions whose denominators are some power of sixty; as,
1/60, 1/3600, 1/216000; -- called also {astronomical
fractions}, because formerly there were no others used in
astronomical calculations.
{Sexagesimal}, or {Sexagenary}, {arithmetic}, the method of
computing by the sexagenary scale, or by sixties.
{Sexagesimal scale} (Math.), the sexagenary scale.
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