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Definition of anthrax (Meaning of anthrax)
3 Definitions found
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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.
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	              A malignant and a turbaned Turk.      --Shak.
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	     2. Characterized or caused by evil intentions; pernicious.
	        ``Malignant care.' --Macaulay.
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	              Some malignant power upon my life.    --Shak.
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	              Something deleterious and malignant as his touch.
	                                                    --Hawthorne.
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	     3. (Med.) Tending to produce death; threatening a fatal
	        issue; virulent; as, malignant diphtheria.
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	     {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]
	
	
	
	  Anthrax An"thrax, n. [L., fr. Gr. ? coal, carbuncle.]
	     1. (Med.)
	        (a) A carbuncle.
	        (b) A malignant pustule.
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	     2. (Biol.) A microscopic, bacterial organism ({Bacillus
	        anthracis}), resembling transparent rods. [See Illust.
	        under {Bacillus}.]
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	     3. An infectious disease of cattle and sheep. It is ascribed
	        to the presence of a rod-shaped gram-positive bacterium
	        ({Bacillus anthracis}), the spores of which constitute the
	        contagious matter. It may be transmitted to man by
	        inoculation. The spleen becomes greatly enlarged and
	        filled with bacteria. Called also {splenic fever}.
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	  Carbuncle Car"bun*cle, n. [L. carbunculus a little coal, a
	     bright kind of precious stone, a kind of tumor, dim. of carbo
	     coal: cf. F. carboncle. See {Carbon}.]
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	     1. (Min.) A beautiful gem of a deep red color (with a mixture
	        of scarlet) called by the Greeks anthrax; found in the
	        East Indies. When held up to the sun, it loses its deep
	        tinge, and becomes of the color of burning coal. The name
	        belongs for the most part to ruby sapphire, though it has
	        been also given to red spinel and garnet.
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	     2. (Med.) A very painful acute local inflammation of the
	        subcutaneous tissue, esp. of the trunk or back of the
	        neck, characterized by brawny hardness of the affected
	        parts, sloughing of the skin and deeper tissues, and
	        marked constitutional depression. It differs from a boil
	        in size, tendency to spread, and the absence of a central
	        core, and is frequently fatal. It is also called
	        {anthrax}.
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	     3. (Her.) A charge or bearing supposed to represent the
	        precious stone. It has eight scepters or staves radiating
	        from a common center. Called also {escarbuncle}.
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From The Collaborative International Dictionary of English v.0.44
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