twenty-fifth
- s coming next after the twenty-fourth in position
- The Auto-Ceptor system works automatically: balloons inflate in one twenty-fifth of a second when the car's deceleration equals the rate that would occur on hitting a solid stone .
- The jumping muscle of the grasshopper, which weighs only one twenty-fifth of a gram, develops "the astounding power of some 20,000 grams per gram of its own weight," or ten .
- And, for the twenty-fifth time, the test has been written by its originators, two university professors who rate high with educators because of the examinations they've prepared .