malignancy
n.
state or quality of being malignant, hostility, desire to inflict harm or evil on another; malignant tumor, life-threatening tumor
Cancer
Cancer is a group of
diseases in which
cells are aggressive (grow and
divide without respect to normal limits), invasive (invade and destroy adjacent tissues), and/or
metastatic (spread to other locations in the body). These three
malignant properties of cancers differentiate them from
benign tumors, which are self-limited in their growth and do not invade or metastasize (although some benign tumor types are capable of becoming malignant). Cancer may affect people at all ages, even
fetuses, but risk for the more common varieties tends to increase with age. Cancer causes about 13% of
all deaths. Apart from people, forms of cancer may affect animals and plants.
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Malignancy
(n.)
Virulence; tendency to a fatal issue; as, the malignancy of an ulcer or of a fever.
(n.)
Unfavorableness; evil nature.
(n.)
The state or quality of being malignant; extreme malevolence; bitter enmity; malice; as, malignancy of heart.
(n.)
The state of being a malignant.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
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Malignancy
A tumor that is malignant.
malignancy
A cancerous tumor that can invade and destroy nearby tissue and spread to other parts of the body.