sundial
noun
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How to pronounce sundial:

Definition of sundial:

sundial (noun):
timepiece that indicates the daylight hours by the shadow that the gnomon casts on a calibrated dial.
an instrument to show the time of day by the shadow of a gnomon on a usually horizontal plate or on a cylindrical surface

Synonyms for sundial:

alarm clock
atomic clock
chronograph
chronometer
clepsydra
clock
cuckoo clock
gnomon
grandfather clock
horologe
hourglass
sandglass
stopwatch
time clock
timekeeper
timepiece
timer
water clock

Antonyms for sundial:

digital clock