The data forms small clots around some event.

Septicemic plague can cause the blood to form small clots through the body.

The water looked clear, though here and there floated small clots of pine needles.

And here, see the way the soil has been thrown aside in small clots?

Bacteria may also form small clots (emboli) which move through the blood and block small arteries.

Pulmonary emboli - small clots blocking the flow of blood through the lungs - might give the same picture.

There was a small clot of blood still: on his upper lip, and his eyes looked sad.

They were very clearly dead: a small neat clot of blood on the woman's forehead, and the child might have been sleeping.

Cupped in his hands was a small clot of the tomb's most central darkness.

But while still in the hospital, he developed several small pulmonary clots, possibly from the combination of vitamin K, prolonged bed rest and cancer.