How can one define Cancer?

Answer 1

Cancer is a class of diseases or disorders characterized by uncontrolled division of cells and the ability of these cells to invade other tissues, either by direct growth into adjacent tissue through invasion or by implantation into distant sites by metastasis. Metastasis is defined as the stage in which cancer cells are transported through the bloodstream or lymphatic system. Cancer may affect people at all ages, but risk tends to increase with age, due to the fact that DNA damage becomes more apparent in aging DNA. It is one of the principal causes of death in developed countries.

There is to the definition - see http://en.wikipedia.org/wiki/Cancer

Answer 2

The term cancer comes from the Latin word meaning crab. Cancer was characterized as a crablike disease by the Greek physician Hippocrates, who observed that cancers spread throughout the body, eventually cutting off life. Now cancer generally is defined as the unregulated growth of abnormal cells in the body. The word cancer actually refers to over 100 different diseases, but in all cases, certain body cells multiply in an uncontrolled manner.

Answer 3

Quite simply a cancer is any malignant growth or tumor caused by abnormal and uncontrolled cell division.

Check out the full and complete list of definitions at the sited reference (source).

Answer 4

Our bodies create new cells everyday to make up for the cells that die. Every kind of cell: skin, blood, etc.

We age because as time passes more cells die a faster rate than new ones are being made.

Cancer is a production of cells that develop faster than they can die. Which in turn causes tumors.

Answer 5

Simple and plain: Cancer is uncontrollable cell growth and cell division.

Answer 6

an horrible disease that if its not cureable eats away at the body till death , causing pain and suffering to the person with cancer and their loved ones

Answer 7

cancer sucks

Answer 8

A vampire.

Answer 9

tiring.