| NOUN | artifact | time-ball | a ball that slides down a staff to show a fixed time |
|---|
| Meaning | A ball that slides down a staff to show a fixed time; especially at an observatory. | |
|---|---|---|
| Part of | timepiece, timekeeper, horologe | A measuring ... / measuring instrument or device for keeping time |
| Broader | ball, globe, orb | An object with a spherical shape |
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