Although the muscles may feel tired, chemically speaking they are not.

Chemically speaking, it is the bicarbonate salt of ammonium.

Crude is chemically speaking a mixture of lots of different chemicals most of which burn well.

At the dawn of the twentieth century, it was already clear that, chemically speaking, you and I are not much different from cans of soup.

Chemically speaking, this is calcium carbonate and a fibrous protein called conchiolin.

I felt suddenly drunk, though I wasn't, chemically speaking.

It would do less harm, chemically speaking, to the brain and neural tissue that the researchers are after.

Chemically speaking, biodiesel has a higher cetane number, but slightly lower energy content than diesel.

"And if it looked enough like vitamin C, chemically speaking, to fool our bodies," Kim went on, "could it have fooled the computers as well?"

Chemically speaking, the drug is an analog of the enzyme that is deficient in patients affected by Pompe disease, alpha-glucosidase.