Today's Word of the Day means...
A small disk-shaped formation or growth; a patch.
A deposit of fatty material on the inner lining of an arterial wall, characteristic of atherosclerosis.
A clear, often round patch of lysed cells in an otherwise opaque layer of a bacteria or cell culture.
A scaly patch formed on the skin by psoriasis.
A sharply defined zone of demyelination characteristic of multiple sclerosis.