During the test, small, flat, sticky patches called electrodes are placed on your chest.

Although they can appear anywhere, these patches - called plaques - are most likely to crop up on your knees, elbows, hands, feet, scalp, or back.

They build up and form thick patches called plaques (say "plax").

Psoriasis is a hereditary condition that causes the skin to form red, scaly patches called plaques.

Until the age of 6, he lived on a grassy patch called Kelly Field in San Antonio.

Half of the patients received the patches, called Cankermelts, which the researchers say contain licorice extract to curb inflammation.

Immature blood vessels may cause small red patches called stork bites.

During interphase the chromatin organizes itself into discrete individual patches, called chromosome territories.

The western patch, called A1, has a bubble in the center which was created by the young, massive star it contains.

The eastern patch, called A2, has several young stars in a newly formed cluster, but they are still obscured by their originating dust cloud.