Malignant

5 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Invasive \In*va"sive\, a. [LL. invasivus: cf. F. invasif. See
     {Invade}.]
     1. Tending to invade; characterized by invasion; aggressive.
        "Invasive war." --Hoole.
        [1913 Webster]
  


     2. (Med.) tending to spread, especially tending to intrude
        into healthy tissue; -- used mostly of tumors. [Narrower
        terms: {malignant}] PJC]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Malignant \Ma*lig"nant\, n.
     1. A man of extreme enmity or evil intentions. --Hooker.
        [1913 Webster]
  
     2. (Eng. Hist.) One of the adherents of Charles I. or Charles
        II.; -- so called by the opposite party.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  malignant \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.
        [1913 Webster]
  
              A malignant and a turbaned Turk.      --Shak.
        [1913 Webster]
  
     2. Characterized or caused by evil intentions; pernicious.
        "Malignant care." --Macaulay.
        [1913 Webster]
  
              Some malignant power upon my life.    --Shak.
        [1913 Webster]
  
              Something deleterious and malignant as his touch.
                                                    --Hawthorne.
        [1913 Webster]
  
     3. (Med.) Tending to produce death; threatening a fatal
        issue; virulent; as, malignant diphtheria.
        [1913 Webster]
  
     {Malignant pustule} (Med.), a very contagious disease
        produced by infection of subcutaneous tissues with the
        bacterium {Bacillus anthracis}. It is transmitted to man
        from animals and is characterized by the formation, at the
        point of reception of the infection, of a vesicle or
        pustule which first enlarges and then breaks down into an
        unhealthy ulcer. It is marked by profound exhaustion and
        often fatal. The disease in animals is called {charbon};
        in man it is called {cutaneous anthrax}, and formerly was
        sometimes called simply {anthrax}.
        [1913 Webster +PJC]

From WordNet (r) 2.0 [wn]:

  malignant
       adj 1: dangerous to health; characterized by progressive and
              uncontrolled growth (especially of a tumor) [ant: {benign}]
       2: extremely malevolent or malicious; "the malignant tongues of
          gossipers" [syn: {malevolent}]

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

  157 Moby Thesaurus words for "malignant":
     acrid, allergic, anemic, antagonistic, antipathetic, apoplectic,
     arthritic, atrocious, baleful, baneful, barbaric, barbarous,
     belligerent, bestial, bilious, bitchy, bitter, bloody, brutal,
     brutish, cancerous, catching, caustic, chlorotic, clashing,
     colicky, colliding, communicable, conflicting, consumptive,
     contagious, corroding, corrosive, corrupting, corruptive,
     counterproductive, cussed, damaging, deadly, death-bringing,
     deathful, deathly, deleterious, despiteful, destructive,
     detrimental, devilish, diabolical, disadvantageous, disserviceable,
     distressing, dropsical, dyspeptic, edematous, encephalitic,
     envenomed, epileptic, evil, fatal, feral, ferine, ferocious,
     fiendish, fierce, full of hate, harmful, hateful, hostile, hurtful,
     infectious, infective, inhuman, iniquitous, injurious, internecine,
     invidious, kill-crazy, killing, laryngitic, leprous, lethal,
     luetic, malarial, malefic, maleficent, malevolent, malicious,
     malign, mean, measly, mephitic, merciless, miasmal, miasmatic,
     miasmic, mischievous, mortal, murderous, nasty, nephritic,
     neuralgic, neuritic, noisome, noncivilized, noxious, ominous,
     ornery, palsied, paralytic, pernicious, pestiferous, pestilential,
     phthisic, pitiless, pleuritic, pneumonic, pocky, podagric,
     poisonous, prejudicial, quarrelsome, rachitic, rancorous,
     repugnant, rheumatic, rickety, ruthless, sanguinary, savage,
     scatheful, scorbutic, scrofulous, set against, sore, spiteful,
     tabetic, tabid, tameless, toxic, toxicant, toxiferous, tubercular,
     tuberculous, tumorigenic, tumorous, uncivilized, ungentle, untamed,
     venenate, veneniferous, venenous, venomous, vicious, virulent,
     vitriolic, wicked, wild