Defn: An instrument for measuring time.
HOROMETRICAL
Hor`o*met"ric*al, a.
Defn: Belonging to horometry.
HOROMETRY
Ho*rom"e*try, n. Etym: [Cf. F. horométrie. See Horometer.]
Defn: The art, practice, or method of measuring time by hours and subordinate divisions. "The horometry of antiquity." Sir T. Browne.
HOROPTER
Ho*rop"ter, n. Etym: [Gr. (Opt.)
Defn: The line or surface in which are situated all the points which are seen single while the point of sight, or the adjustment of the eyes, remains unchanged. The sum of all the points which are seen single, while the point of sight remains unchanged, is called the horopter. J. Le Conte.
HOROPTERIC
Hor`op*ter"ic, a. (Opt.)
Defn: Of or pertaining to the horopter.
HOROSCOPE Hor"o*scope, n. Etym: [F. horoscope, L. horoscopus, fr. Gr. n., a horoscope; Hour, and -scope.]