Comes from taking your food in pills, instead of good solid substance.

Replies: If you mean solid substances at room temperature, silver.

The darkness of the closet floor wasn't space; it was solid substance.

Then they worked on the atoms and molecules that make up solid substances.

Vrenn felt the warm, wet air like a solid substance around him.

We have said that if education is a solid substance, then there is none of it.

Hardly anything more dangerous, either, if one is passing through some solid substance!

The darkness had the reality of a solid substance.

It reminds me of people who go around quietly and yet have a strong effect on others because behind the calm you sense solid substance.

He put out his hand and his palm met solid substance.