SEXAGESIMAL
sexagesimal
(adjective) of or relating to or reckoning in sixtieths; “the sexagesimal divisions of hours and degrees”
Source: WordNet® 3.1
Etymology
Adjective
sexagesimal (not comparable)
(arithmetic) Of, pertaining to, proceeding by, or based on the number sixty.
Noun
sexagesimal (plural sexagesimals)
A sexagesimal fraction.
Source: Wiktionary
Sex`a*ges"i*mal, a. Etym: [Cf. F. sexagésimal.]
Definition: Pertaining to, or founded on, the number sixty. Sexagesimal
fractions or numbers (Arith. & Alg.), those fractions whose
denominators are some power of sixty; as, 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.
Sex`a*ges"i*mal, n.
Definition: A sexagesimal fraction.
Source: Webster’s Unabridged Dictionary 1913 Edition