4. The index of the hour circle of a globe.
GNOMONIC; GNOMONICAL
Gno*mon"ic, Gno*mon"ic*al, a. Etym: [L. gnomonicus, Gr. gnomonique.
See Gnomon.]
Defn: Of or pertaining to the gnomon, or the art of dialing. Gnomonic projection, a projection of the circles of the sphere, in which the point of sight is taken at the center of the sphere, and the principal plane is tangent to the surface of the sphere. "The gnomonic projection derives its name from the connection between the methods of describing it and those for the construction of a gnomon or dial." Cyc. of Arts & Sciences.
GNOMONICALLY
Gno*mon"ic*al*ly, adv.
Defn: According to the principles of the gnomonic projection.
GNOMONICS
Gno*mon"ics, n. Etym: [See Gnomonic.]
Defn: The art or science of dialing, or of constructing dials to show the hour of the day by the shadow of a gnomon.
GNOMONIST
Gno"mon*ist, n.
Defn: One skilled in gnomonics. Boyle.
GNOMONOLOGY
Gno`mon*ol"o*gy, n. Etym: [Gnomon + -logy. Cf. Gnomonology.]