An object such as a pillar or a rod that is used to tell time by the shadow it casts when the sun shines on it, especially the pointer on a sundial.
A plane figure formed by removing a parallelogram from a corner of a larger parallelogram.
An object such as a pillar used by an observer to calculate the meridian altitude of the sun (that is, the altitude of the sun when it reaches the observer's meridian), for the purpose of determining the observer's latitude.
The index of the hour circle of a globe.
A number representing the increment between two figurate numbers (“numbers equal to the numbers of dots in geometric figures formed of dots”).
A device that shows the time; a timepiece.
A person (or something controlled by a person) that is or isn't punctual.
A person who keeps records of the hours of attendance of employees.
A person who records the time elapsed in a sporting event.