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2 definitions found
 for Black flux
From The Collaborative International Dictionary of English v.0.48 :

  Flux \Flux\ (fl[u^]ks), n. [L. fluxus, fr. fluere, fluxum, to
     flow: cf.F. flux. See Fluent, and cf. 1st & 2d Floss,
     Flush, n., 6.]
     1. The act of flowing; a continuous moving on or passing by,
        as of a flowing stream; constant succession; change.
        [1913 Webster]
  
              By the perpetual flux of the liquids, a great part
              of them is thrown out of the body.    --Arbuthnot.
        [1913 Webster]
  
              Her image has escaped the flux of things,
              And that same infant beauty that she wore
              Is fixed upon her now forevermore.    --Trench.
        [1913 Webster]
  
              Languages, like our bodies, are in a continual flux.
                                                    --Felton.
        [1913 Webster]
  
     2. The setting in of the tide toward the shore, -- the ebb
        being called the reflux.
        [1913 Webster]
  
     3. The state of being liquid through heat; fusion.
        [1913 Webster]
  
     4. (Chem. & Metal.) Any substance or mixture used to promote
        the fusion of metals or minerals, as alkalies, borax,
        lime, fluorite.
        [1913 Webster]
  
     Note: White flux is the residuum of the combustion of a
           mixture of equal parts of niter and tartar. It consists
           chiefly of the carbonate of potassium, and is white. --
           Black flux is the ressiduum of the combustion of one
           part of niter and two of tartar, and consists
           essentially of a mixture of potassium carbonate and
           charcoal.
           [1913 Webster]
  
     5. (Med.)
        (a) A fluid discharge from the bowels or other part;
            especially, an excessive and morbid discharge; as, the
            bloody flux or dysentery. See Bloody flux.
        (b) The matter thus discharged.
            [1913 Webster]
  
     6. (Physics) The quantity of a fluid that crosses a unit area
        of a given surface in a unit of time.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Black \Black\ (bl[a^]k), a. [OE. blak, AS. bl[ae]c; akin to
     Icel. blakkr dark, swarthy, Sw. bl[aum]ck ink, Dan. bl[ae]k,
     OHG. blach, LG. & D. blaken to burn with a black smoke. Not
     akin to AS. bl[=a]c, E. bleak pallid. [root]98.]
     1. Destitute of light, or incapable of reflecting it; of the
        color of soot or coal; of the darkest or a very dark
        color, the opposite of white; characterized by such a
        color; as, black cloth; black hair or eyes.
        [1913 Webster]
  
              O night, with hue so black!           --Shak.
        [1913 Webster]
  
     2. In a less literal sense: Enveloped or shrouded in
        darkness; very dark or gloomy; as, a black night; the
        heavens black with clouds.
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              I spy a black, suspicious, threatening cloud.
                                                    --Shak.
        [1913 Webster]
  
     3. Fig.: Dismal, gloomy, or forbidding, like darkness;
        destitute of moral light or goodness; atrociously wicked;
        cruel; mournful; calamitous; horrible. "This day's black
        fate." "Black villainy." "Arise, black vengeance." "Black
        day." "Black despair." --Shak.
        [1913 Webster]
  
     4. Expressing menace, or discontent; threatening; sullen;
        foreboding; as, to regard one with black looks.
        [1913 Webster]
  
     Note: Black is often used in self-explaining compound words;
           as, black-eyed, black-faced, black-haired,
           black-visaged.
           [1913 Webster]
  
     Black act, the English statute 9 George I, which makes it a
        felony to appear armed in any park or warren, etc., or to
        hunt or steal deer, etc., with the face blackened or
        disguised. Subsequent acts inflicting heavy penalties for
        malicious injuries to cattle and machinery have been
        called black acts.
  
     Black angel (Zool.), a fish of the West Indies and Florida
        ({Holacanthus tricolor), with the head and tail yellow,
        and the middle of the body black.
  
     Black antimony (Chem.), the black sulphide of antimony,
        Sb2S3, used in pyrotechnics, etc.
  
     Black bear (Zool.), the common American bear ({Ursus
        Americanus).
  
     Black beast. See B[^e]te noire.
  
     Black beetle (Zool.), the common large cockroach ({Blatta
        orientalis).
  
     Black bonnet (Zool.), the black-headed bunting ({Embriza
        Sch[oe]niclus) of Europe.
  
     Black canker, a disease in turnips and other crops,
        produced by a species of caterpillar.
  
     Black cat (Zool.), the fisher, a quadruped of North America
        allied to the sable, but larger. See Fisher.
  
     Black cattle, any bovine cattle reared for slaughter, in
        distinction from dairy cattle. [Eng.]
  
     Black cherry. See under Cherry.
  
     Black cockatoo (Zool.), the palm cockatoo. See Cockatoo.
        
  
     Black copper. Same as Melaconite.
  
     Black currant. (Bot.) See Currant.
  
     Black diamond. (Min.) See Carbonado.
  
     Black draught (Med.), a cathartic medicine, composed of
        senna and magnesia.
  
     Black drop (Med.), vinegar of opium; a narcotic preparation
        consisting essentially of a solution of opium in vinegar.
        
  
     Black earth, mold; earth of a dark color. --Woodward.
  
     Black flag, the flag of a pirate, often bearing in white a
        skull and crossbones; a signal of defiance.
  
     Black+flea+(Zool.),+a+flea+beetle+({Haltica+nemorum">Black flea (Zool.), a flea beetle ({Haltica nemorum)
        injurious to turnips.
  
     Black flux, a mixture of carbonate of potash and charcoal,
        obtained by deflagrating tartar with half its weight of
        niter. --Brande & C.
  
     Black Forest [a translation of G. Schwarzwald], a forest in
        Baden and W["u]rtemburg, in Germany; a part of the ancient
        Hercynian forest.
  
     Black game, or Black grouse. (Zool.) See Blackcock,
        Grouse, and Heath grouse.
  
     Black grass (Bot.), a grasslike rush of the species Juncus
        Gerardi, growing on salt marshes, and making good hay.
  
     Black gum (Bot.), an American tree, the tupelo or
        pepperidge. See Tupelo.
  
     Black Hamburg (grape) (Bot.), a sweet and juicy variety of
        dark purple or "black" grape.
  
     Black horse (Zool.), a fish of the Mississippi valley
        ({Cycleptus elongatus), of the sucker family; the
        Missouri sucker.
  
     Black lemur (Zool.), the Lemurniger of Madagascar; the
        acoumbo of the natives.
  
     Black list, a list of persons who are for some reason
        thought deserving of censure or punishment; -- esp. a list
        of persons stigmatized as insolvent or untrustworthy, made
        for the protection of tradesmen or employers. See
        Blacklist, v. t.
  
     Black manganese (Chem.), the black oxide of manganese,
        MnO2.
  
     Black Maria, the close wagon in which prisoners are carried
        to or from jail.
  
     Black martin (Zool.), the chimney swift. See Swift.
  
     Black moss (Bot.), the common so-called long moss of the
        southern United States. See Tillandsia.
  
     Black oak. See under Oak.
  
     Black ocher. See Wad.
  
     Black pigment, a very fine, light carbonaceous substance,
        or lampblack, prepared chiefly for the manufacture of
        printers' ink. It is obtained by burning common coal tar.
        
  
     Black plate, sheet iron before it is tinned. --Knight.
  
     Black quarter, malignant anthrax with engorgement of a
        shoulder or quarter, etc., as of an ox.
  
     Black rat (Zool.), one of the species of rats ({Mus
        rattus), commonly infesting houses.
  
     Black rent. See Blackmail, n., 3.
  
     Black rust, a disease of wheat, in which a black, moist
        matter is deposited in the fissures of the grain.
  
     Black sheep, one in a family or company who is unlike the
        rest, and makes trouble.
  
     Black silver. (Min.) See under Silver.
  
     Black and tan, black mixed or spotted with tan color or
        reddish brown; -- used in describing certain breeds of
        dogs.
  
     Black tea. See under Tea.
  
     Black tin (Mining), tin ore (cassiterite), when dressed,
        stamped and washed, ready for smelting. It is in the form
        of a black powder, like fine sand. --Knight.
  
     Black walnut. See under Walnut.
  
     Black+warrior+(Zool.),+an+American+hawk+({Buteo+Harlani">Black warrior (Zool.), an American hawk ({Buteo Harlani).
        [1913 Webster]
  
     Syn: Dark; murky; pitchy; inky; somber; dusky; gloomy; swart;
          Cimmerian; ebon; atrocious.
          [1913 Webster]

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