The dangerous dust explosion that can occur when an air suspension of the fine organic, often starchy, substance is ignited.

The mental body is composed of an even finer etheric substance than the astral body, and extends from the hip line upward and outward.

He has been so successful in his calling that the finest substance in existence - the substance of dreams - has begun to give in to him.

Soil microorganisms, worms and bacteria go to work and break down this organic material into a fine substance.

They had a pile of dry wood, a fine moss-like substance, and splinters carefully shaved from tree branches with the sharp edge of Cirocco's helmet.

He realised that the current approaches, which involved mixing fine white substances like crushed egg shells into clay, would not work.

They were not even ashes, these ashes, but a substance thinner than air-blasted so fine as to be invisible.

The letter contained a fine powdery substance that later tested positive for ricin.

Pharmaceutical industry In pharmaceutical industry, nitrogen finds application in pharmaceuticals packaging, and ensuring against explosion and fire safety in activities where fine dispersed substances are used.

This fine powdery substance, dusted in areas where slugs are found, inhibits the slimy critters by dehydrating them.