| 1. | a device for studying the motion of a body, esp. a body in rapid revolution or vibration, by making the motion appear to slow down or stop, as by periodically illuminating the body or viewing it through widely spaced openings in a revolving disk. |
| 2. | Photography.
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| 3. | such a lamp used for creating special lighting effects, as in a theater or discotheque or at a rock concert. |