Sinonim time-ball

English Thesaurus

1. a ball that slides down a staff to show a fixed time; especially at an observatory (noun.artifact)

hypernym	:	ball, globe, orb,
definition	:	an object with a spherical shape (noun.shape)

part meronym	:	horologe, timekeeper, timepiece,
definition	:	a measuring instrument or device for keeping time (noun.artifact)