The descriptions required the collection,study and often the dissection of a large number of specimens.

This description requires one to complete an infinite number of tasks, which Zeno maintains is an impossibility.

The description of motion in relativity requires more than one concept of speed.

In other words, the description of the charge should not require the use of a proper noun.

She's right, although her description requires all the usual qualifications: more or less, much of the time, in a way.

Thus a description of my little picture requires 2,500 X 20 or about 50,000 bits.

A complete description of internal elastic strain requires that all these crystallographic parameters be measured.

The description of the state as the "Republic of Ireland" did not require any change in the name on coins issued after 1948.

A correct description of this magnetic moment requires a treatment based on quantum electrodynamics.

The description of rotation requires some method for describing orientation.