grey matter

But if you think the gridiron arts can shake up the grey matter, try the prize ring.

The appearance of the Indian springing at him seemed to set some of the grey matter in Cameron's brain moving along old tracks.

In some women there seems at times to be a dual personality, a woman of the blood at odds with a woman of the grey matter.

I believe in that myself because it has been explained by competent men as the convolutions of the grey matter.

And Ive got the best grey matter in this camp, and Im going to be top dog as a matter of course.

A few fibres are also found laterally, and slightly dorsally, to the grey matter.