| Definition | a machine designed to function in place of a human, esp. one that resembles a human |
| OED requirements | antedating 1922 |
| Earliest cite | New York Times |
| Comment | Coined in Capek's play 'R.U.R.' (first translated into English in 1923), from a Czech word meaning 'forced labor'
OED entry revised in June 2010, with an earliest citation of 1922 |
| Last modified | 13 June, 2010 |
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| 1941 Cosmic Stories Mar. | The tank was, of course, a kind of super-robot and was now out of action as far as driving itself went. |
| 1941 Cosmic Stories May | Toam's muscles ached and his hands were raw with blisters, but the robot in the stern paddled steadily ahead, the scorched smell of overheated oil in his bearings alone telling of the strain he had endured. |
| 1954 C. Oliver Field Expedient in W. F. Nolan Edge of Forever (1971) 141 | The ship carried two pilots, a navigator, a doctor, fifty babies, twenty-five special humanoid robots, computers, and supplies. |