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Definition of Time-ball
1. Noun. A ball that slides down a staff to show a fixed time; especially at an observatory.
Definition of Time-ball
1. Noun. (rare spelling of time ball) ¹
¹ Source: wiktionary.com
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1. Noun. A ball that slides down a staff to show a fixed time; especially at an observatory.
1. Noun. (rare spelling of time ball) ¹
¹ Source: wiktionary.com