It may also be calculated by dividing a hotel's total guestroom revenue by the room count and the number of days in the period being measured.

They rented the rooms for a short period measured by a water-clock set at the door, and charged a large copper ring for this service.

In the fourth part of the period measured by an hourglass, it will be too late and we all must die here.

Dr. Miringoff described child abuse as the social problem that became most acute over the 21-year period measured in the children's study.

For most fission products, 10 half-lives is a period measured in hundreds of years.

Any one pair of these elements can be causal, and these relationships may change within the period being measured.

Over all, the United States population rose 3 percent, to 245.8 million, from July 1, 1985, to July 1, 1988, the period measured in the latest estimates.

Hurricane Wilma also underwent the most rapid deepening for a 24-hour period ever measured.

And the cost of hotel rooms has fallen by 20 percent since the period measured in the Javits Center report.