This usually occurs because fatty deposits called plaque have built up inside the coronary arteries, which supply blood to the heart.

Their fossils were buried in a deposit now called the Midland Fish Bed.

Rock flour particles may travel great distances either suspended in water or carried by the wind, in the latter case, forming deposits called loess.

People with atherosclerosis have fatty deposits called plagues along the lining of their blood vessels.

Damage to the lining of the blood vessels throughout your body, causing them to become clogged with hard, fatty deposits called plaques.

Dissolved minerals in natural water supplies are concentrated by evaporation to leave deposits called scale.

The deposits, called slickens, are up to six feet deep.

Very rapidly and the plaque mixes with saliva and hardens to form a yellow deposit called calculus.

During the Quaternary Period the area was covered in periglacial deposits called head.

In the dry form, doctors often see yellow deposits called drusen in the macula.