The technology creates the color from a physical rather than a chemical basis.

She might have been insane, but her monitoring techniques established the chemical basis of sanity and maintained it artificially.

I know a bit about the chemical basis of life.

The chemical basis of memory does not survive chaotic freezing well.

Many studies have been performed recently to investigate the cause, mechanism, and chemical basis of Unverricht-Lundborg disease.

The chances of matching that exactly on a chemical basis is essentially zero.

Biology: Biochemistry, the chemical basis for biology, developed significantly during these years.

Is there a physical or chemical basis for what's happening to the food as it cooks?

Baker (1974) summarises the historical and chemical basis of this industry.

According to McColm, they illustrate the chemical basis of 'the second industrial revolution'.