It is now classified as a dried, crude material.

No civilization that could build an interstellar probe would have used such crude materials.

Without these categories, crude materials tumbled 2.1 percent, the fifth straight monthly decline.

Her clothes were mostly filthy rags and other crude material.

The prices that businesses pay for crude materials have fallen for six consecutive months, and, in October, dropped 9.1 percent.

Exports rose about an average of $150 million each for crude materials, agricultural commodities and fuels.

This process involves a distillation of the crude material yielding a very pure grade.

I have no appetite for the coarse and crude material of which plots are made.

At the same time, however, today's warning also urged law enforcement officials to be on guard against smaller attacks with cruder materials like simple explosives.