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Meaning of MALIGNANT

Pronunciation:  mu'lignunt

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

MALIGNANT is a 9 letter word that starts with M.


 Synonyms: cancerous, malevolent, malign
 Antonyms: benign



Webster's 1913 Dictionary
  1. \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.
    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}.
  2. \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.
Biology Dictionary
 Definition: In reference to a tumor, an infiltrating metastasizing growth no longer under normal growth control.
 Definition: Having the properties of cancerous growth.
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