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  • noun

Words related to sundial

timepiece that indicates the daylight hours by the shadow that the gnomon casts on a calibrated dial

References in periodicals archive ?
The left-to-right direction of the rotation, borrowed from horizontal solar clocks, soon became the norm, although some clocks sport an hour hand that rotates counter-clockwise, as is the case on vertical sundials.
Tosi selected the images of his study according to the objects that accompany the sitters: astrolabes, regular bodies, solar clocks, armillary spheres, globes, astronomical instruments, and mathematical texts.