Translate sundial | into French | into German | into Italian | into Spanish Definition of sundial
noun
1an instrument showing the time by the shadow of a pointer cast by the sun onto a plate marked with the hours of the day.
2 (also sundial shell) a mollusk with a flattened spiral shell that is typically patterned in shades of brown, living in tropical and subtropical seas. - Family Architectonicidae, class Gastropoda
