malignant

malignant (ma-lig´nant)

1. Resistant to treatment;occurring in severe form, and frequently fatal; tending to become worse and leading to an ingravescent course. 2. In reference to a neoplasm, having the property of locally invasive and destructive growth and metastasis. [L. maligno, pres. p. -ans (ant-), to do anything maliciously]

 

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