| prototype stage | 0.79 | Now in the prototype stage, the Reader is not expected to reach the market until next year. | ||
| prototype system | 0.79 | The fifth test of a prototype missile defense system has been rescheduled for Monday night. | ||
| prototype car | 0.66 | The prototype fuel cell car will use a still-developing technology. | ||
| prototype interceptor | 0.66 | The one being tested uses prototype interceptors and radars. | ||
| prototype device | 0.53 | In the prototype device, gasoline runs over a material that acts as a catalyst. | ||
| prototype version | 0.46 | GM also had a prototype fuel cell version of its Opel Sintra on display. | ||
| prototype machine | 0.39 | Their approach is expected to lead to a prototype machine by April. | ||
| prototype reactor | 0.39 | No one was reported injured in the accident in the prototype reactor. | ||
| prototype rocket | 0.39 | In two of three interception tests, prototype interceptor rockets failed to hit their target in space. | ||
| prototype design | 0.33 | The latter was a prototype design for many other Dutch towns. | ||
| prototype unit | 0.33 | A company in Wisconsin has a prototype cooling unit plugged in and working. | ||
| prototype model | 0.26 | Pierce, a mechanical engineer, has prototype models of both of the pilot rescue beacon devices that NCR produced. | ||
| prototype quarterback | 0.26 | Carson, to me, is the prototype quarterback. | ||
| prototype store | 0.26 | I sketched the layout of a prototype store and worked up a business plan. | ||
| prototype weapon | 0.26 | Instead, both prototype weapons simply flew past mock targets in space, trying to distinguish incoming warheads from decoys. |