Cancer is a disease in which cells grow uncontrollably and form tumors. The best chance of surviving cancer usually involves finding and treating it early.

The word cancer actually means "crab," like the zodiac sign. Around 400 B.C., Greek physician Hippocrates is said to have named the disease karkinos, which is Greek for "crab," when he noticed that tumors formed a crab-like shape. The word cancer describes not just a disease, but any sort of evilness that can spread. Hatred and bigotry are cancers that can destroy communities.

Definitions of cancer
  1. noun
    any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream
    synonyms: malignant neoplastic disease
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    a neoplasm of lymph tissue that is usually malignant; one of the four major types of cancer
    any malignant tumor derived from epithelial tissue; one of the four major types of cancer
    cancer of the blood, leucaemia, leukaemia, leukemia
    malignant neoplasm of blood-forming tissues; characterized by abnormal proliferation of leukocytes; one of the four major types of cancer
    a usually malignant tumor arising from connective tissue (bone or muscle etc.); one of the four major types of cancer
    cancer of the liver, liver cancer
    malignant neoplastic disease of the liver usually occurring as a metastasis from another cancer; symptoms include loss of appetite and weakness and bloating and jaundice and upper abdominal discomfort
    a malignant neoplasm of cartilage cells
    Ewing's sarcoma, Ewing's tumor, Ewing's tumour, endothelial myeloma
    malignant tumor in bone marrow (usually in the pelvis or in long bones)
    Kaposi's sarcoma
    a sarcoma that starts with purplish spots on the feet and legs and spreads from the skin to lymph nodes and internal organs; a common manifestation of AIDS
    sarcoma of smooth muscle; occurs most often digestive tract or uterus or bladder or prostate
    sarcoma of fat cells
    sarcoma of muscle tissue
    malignant neuroma, neurosarcoma
    a malignant neoplasm of nerve tissue and fibrous tissue and connective tissue
    osteogenic sarcoma, osteosarcoma
    malignant bone tumor; most common in children and young adults where it tends to affect the femur
    Hodgkin's disease
    a malignant disorder in which there is progressive (but painless) enlargement of lymph tissue followed by enlargement of the spleen and liver
    acute leukemia
    rapidly progressing leukemia
    chronic leukemia
    slowly progressing leukemia
    lymphocytic leukemia
    leukemia characterized by enlargement of lymphoid tissues and lymphocytic cells in the circulating blood
    histiocytic leukaemia, histiocytic leukemia, monoblastic leukaemia, monoblastic leukemia, monocytic leukaemia, monocytic leukemia
    leukemia characterized by the proliferation of monocytes and monoblasts in the blood
    myeloblastic leukemia
    a malignant neoplasm of blood-forming tissues; characterized by numerous myeloblasts in the blood stream
    granulocytic leukemia, myelocytic leukemia
    a malignant neoplasm of blood-forming tissues; marked by proliferation of myelocytes and their presence in the blood
    rhabdomyosarcoma, rhabdosarcoma
    a highly malignant neoplasm derived from striated muscle
    Wilms tumour, Wilms' tumor, adenomyosarcoma, embryoma of the kidney, nephroblastoma
    malignant renal tumor of young children characterized by hypertension and blood in the urine and the presence of a palpable mass
    adenocarcinoma, glandular cancer, glandular carcinoma
    malignant tumor originating in glandular epithelium
    breast cancer
    cancer of the breast; one of the most common malignancies in women in the US
    carcinoma in situ, preinvasive cancer
    a cluster of malignant cells that has not yet invaded the deeper epithelial tissue or spread to other parts of the body
    colon cancer
    a malignant tumor of the colon; early symptom is bloody stools
    embryonal carcinoma
    malignant neoplasm of the testis
    endometrial cancer, endometrial carcinoma
    cancer of the uterine lining
    hepatocarcinoma, hepatocellular carcinoma, hepatoma, malignant hepatoma
    carcinoma of the liver
    lung cancer
    carcinoma of the lungs; one of the commonest forms of cancer
    a form of carcinoma of the mesothelium lining lungs or abdomen or heart; usually associated with exposure to asbestos dust
    oat cell carcinoma, small cell carcinoma
    highly malignant carcinoma composed of small round or egg-shaped cells with little cytoplasm; lung cancers are frequently oat cell carcinomas
    oral cancer
    malignant neoplasm of the lips of mouth; most common in men over the age of 60
    pancreatic cancer
    cancer of the pancreas
    seminoma, testicular cancer
    malignant tumor of the testis; usually occurring in older men
    skin cancer
    a malignant neoplasm of the skin
    trophoblastic cancer
    malignant neoplasm of the uterus derived from the epithelium of the chorion
    type of:
    malignant neoplasm, malignant tumor, metastatic tumor
    a tumor that is malignant and tends to spread to other parts of the body
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