Malignant Definition

Other Malignant Definition

[adj] extremely malevolent or malicious; "the malignant tongues of gossipers"
[adj] (pathology) dangerous to health; characterized by progressive and uncontrolled growth (especially of a tumor)


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Antonyms

benign

Misc. Definitions

\Ma*lig"nant\, a. [L. malignans, -antis, p. pr. of malignare, malignari, to do or make maliciously. See {Malign}, and cf. {Benignant}.]
1. Disposed to do harm, inflict suffering, or cause distress; actuated by extreme malevolence or enmity; virulently inimical; bent on evil; malicious. A malignant and a turbaned Turk. --Shak.
2. Characterized or caused by evil intentions; pernicious. ``Malignant care.'' --Macaulay. Some malignant power upon my life. --Shak. Something deleterious and malignant as his touch. --Hawthorne.
3. (Med.) Tending to produce death; threatening a fatal issue; virulent; as, malignant diphtheria. {Malignant pustule} (Med.), a very contagious disease, transmitted to man from animals, characterized by the formation, at the point of reception of the virus, of a vesicle or pustule which first enlarges and then breaks down into an unhealthy ulcer. It is marked by profound exhaustion and usually fatal. Called also {charbon}, and sometimes, improperly, {anthrax}.
\Ma*lig"nant\, n.
1. A man of extrems enmity or evil intentions. --Hooker.
2. (Eng. Hist.) One of the adherents of Charles L. or Charles LL.; -- so called by the opposite party.

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