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time-ball

   Also found in: Wikipedia 0.01 sec.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.time-ball - a ball that slides down a staff to show a fixed time; especially at an observatory
horologe, timepiece, timekeeper - a measuring instrument or device for keeping time
globe, orb, ball - an object with a spherical shape; "a ball of fire"


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To celebrate the end of the 1900s on January 1, 2000, and to officially welcome the new millennium on January 1, 2001, the Naval Observatory is coordinating a time-ball drop around the world with time-ball sites in New Zealand, Australia, the United Kingdom, and the United States.
 
 
 
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