a) continuing a long time or recurring frequently;
b) gradual gathering of something;
c) a white crystalline substance, found in animal tissues and various foods, that is normally synthesized by the liver and is important as a constituent of cell membranes;
d) a hollow organ of blood circulation, composed mainly of smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers;
e) a blood vessel that conveys blood from the heart to any part of the body;
f) the formation of a coating of matter on something, as on the tongue;
g) the liquid part of blood or lymph, as distinguished from the suspended elements;
h) a flat, often raised, patch on the skin or other organ, as on the inner lining of arterial walls in atherosclerosis.
