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Definition of Lung cancer
1. Noun. Carcinoma of the lungs; one of the commonest forms of cancer.
Generic synonyms: Carcinoma
Medical Definition of Lung cancer
1. A cancerous growth in lung tissue. Lung cancer may be metastatic from another source (colon) or may be primary (tumour is of lung cell origin). Classification is based on the type of cell the lung cancer originates from (adenocarcinoma, alveolar cell carcinoma, squamous cell carcinoma, large cell and small cell carcinomas). (27 Sep 1997)