sundial [
'sʌndaiәl]
n. 日规, 日晷
sundial[ noun ]
timepiece that indicates the daylight hours by the shadow that the gnomon casts on a calibrated dial
<noun.artifact>
Sundial \Sun"di`al\, n.
An instrument to show the time of day by means of the shadow
of a gnomon, or style, on a plate.
{Sundial shell} (Zo["o]l.), any shell of the genus Solarium.
See {Solarium}.