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Definition of malignant (Meaning of malignant)
3 Definitions found
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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]
	
	
	
	  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]
	
	
	
	  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.0.44
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