What is Cancer?

Cancer
noun
1. Pathology

a) a malignant and invasive growth or tumor, especially originating in epithelium, tending to recur after excision and to metastasize to other sites.
b) any disease characterized by such growths.

Malignant
adjective
Pathology

  1. tending to produce death, as bubonic plague.
    (of a tumor) characterized by uncontrolled growth; cancerous, invasive, or metastatic.

Epithelium
noun, plural epitheliums, epithelia
Biology  

  1. any animal tissue that covers a surface, or lines a cavity or the like, and that, in addition, performs any of various secretory, transporting, or regulatory functions.

Metastasize
verb (used without object), metastasized, metastasizing

  1. Pathology.  (of malignant cells or disease-producing organisms) to spread to other parts of the body by way of the blood or lymphatic vessels or membranous surfaces.
Pathology
noun, plural pathologies
  1. the science or the study of the origin, nature, and course of diseases.
  2. the conditions and processes of a disease.
  3. any deviation from a healthy, normal, or efficient condition.

Sources:
cancer. (n.d.). Dictionary.com Unabridged. Retrieved September 02, 2015, from Dictionary.com website: http://dictionary.reference.com/browse/cancer
malignant. (n.d.). Dictionary.com Unabridged. Retrieved September 02, 2015, from Dictionary.com website: http://dictionary.reference.com/browse/malignant
epithelium. (n.d.). Dictionary.com Unabridged. Retrieved September 02, 2015, from Dictionary.com website: http://dictionary.reference.com/browse/epithelium
metastasize. (n.d.). Dictionary.com Unabridged. Retrieved September 02, 2015, from Dictionary.com website: http://dictionary.reference.com/browse/metastasize
pathology. (n.d.). Dictionary.com Unabridged. Retrieved September 02, 2015, from Dictionary.com website: http://dictionary.reference.com/browse/pathology

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