Everything that seemed of value was draped over by sheets where dust had accumulated to turn the white cloth dingy gray.

The space beneath the bed was clean; his manservant knew better than to let dust accumulate on the floor.

"If dust is accumulating on the screen, you know something is wrong," he said.

The dust accumulates in a bag house, while the gases are vented to the atmosphere.

The reason that the particles and dust accumulated together is their gravitational attraction for each other.

Since the window had been left open, dust from the towers had accumulated throughout.

How much dust would accumulate in the amphitheater in a year?

Fires usually start near the engine where dust and dry crop debris accumulate.

It is believed that radioactive dust has accumulated in the mud and leaves.

The cobwebs, dust, and litter which were prevalent everywhere could not have accumulated in a day.