For most substances, like water, this is the same as the melting point.

For such substances we must insist on getting the standard scientific data.

"They are looking for substance, not style - a terrible thing."

She has a remarkable eye for substance, the things that give life its texture.

Not having known this in advance, I feel obliged to go for substance rather than time management.

This is particularly important for hazardous substances because they have a worse effect on the environment than other resources.

"It's part of a broad trend - people are looking for substance these days."

This is the basis for "glow in the dark" substances.

The term is also used for synthetic substances of similar properties.

Supposed tests for other substances, like human growth hormone, are not effective.