The expression came into use in the 19th century and describes how a system "hunts" for equilibrium.

Such an expression describes an invariant under a Hermitian transformation.

Drew up, I say - no other expression can describe the steady deliberation of the act - and at last was disclosed completely to me.

For the first time in her life, that expression described the actual truth.

It is necessary to use the expression "a red herring" to describe what was inside the cardboard box.

From what Adele had seen of the man, his normal expression accurately described the personality beneath.

We use the expression "My blood freezes over" to describe a feeling of great horror.

We consider two such regular expressions equal if they describe the same language.

This expression describes the rate at which species is consumed in reaction .

The Germans sometimes use the expression 'new unification' to describe what is more plausible.