The art, technology and technology of timekeeping and timekeepers, such clocks, watches and sundials.
The research of calculating time, or the maxims and art of making devices for calculating and suggesting portions of time, as clocks, watches, dials, etc.
A contrivance for calculating time; a timepiece.
Within The Gr. Ch., an office-book containing the offices the canonical hours, from matins (mesonycticon) to complin (apodeipnon) inclusive, including antiphons, hymns, etc., from menology alongside publications, some brief occasional workplaces, and several canons of odes. Usually the diary is prefixed.
The research of calculating time, or perhaps the maxims and art of making, managing, testing, etc., machines for suggesting divisions of the time, as clocks and watches.