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 Mercurialis annua 添加此单词到默认生词本
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    mercurialis annua
    [ noun ]
    Eurafrican annual naturalized in America as a weed; formerly dried for use as a purgative, diuretic or antisyphilitic
    <noun.plant>


    Mercury \Mer"cu*ry\, n. [L. Mercurius; akin to merx wares.]
    1. (Rom. Myth.) A Latin god of commerce and gain; -- treated
    by the poets as identical with the Greek Hermes, messenger
    of the gods, conductor of souls to the lower world, and
    god of eloquence.

    2. (Chem.) A metallic element mostly obtained by reduction
    from cinnabar, one of its ores. It is a heavy, opaque,
    glistening liquid (commonly called {quicksilver}), and is
    used in barometers, thermometers, etc. Specific gravity
    13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8.
    Mercury has a molecule which consists of only one atom. It
    was named by the alchemists after the god Mercury, and
    designated by his symbol, [mercury].

    Note: Mercury forms alloys, called amalgams, with many
    metals, and is thus used in applying tin foil to the
    backs of mirrors, and in extracting gold and silver
    from their ores. It is poisonous, and is used in
    medicine in the free state as in blue pill, and in its
    compounds as calomel, corrosive sublimate, etc. It is
    the only metal which is liquid at ordinary
    temperatures, and it solidifies at about -39[deg]
    Centigrade to a soft, malleable, ductile metal.

    3. (Astron.) One of the planets of the solar system, being
    the one nearest the sun, from which its mean distance is
    about 36,000,000 miles. Its period is 88 days, and its
    diameter 3,000 miles.

    4. A carrier of tidings; a newsboy; a messenger; hence, also,
    a newspaper. --Sir J. Stephen. ``The monthly Mercuries.''
    --Macaulay.

    5. Sprightly or mercurial quality; spirit; mutability;
    fickleness. [Obs.]

    He was so full of mercury that he could not fix long
    in any friendship, or to any design. --Bp. Burnet.

    6. (Bot.) A plant ({Mercurialis annua}), of the Spurge
    family, the leaves of which are sometimes used for
    spinach, in Europe.

    Note: The name is also applied, in the United States, to
    certain climbing plants, some of which are poisonous to
    the skin, esp. to the {Rhus Toxicodendron}, or poison
    ivy.

    {Dog's mercury} (Bot.), {Mercurialis perennis}, a perennial
    plant differing from {Mercurialis annua} by having the
    leaves sessile.

    {English mercury} (Bot.), a kind of goosefoot formerly used
    as a pot herb; -- called {Good King Henry}.

    {Horn mercury} (Min.), a mineral chloride of mercury, having
    a semitranslucent, hornlike appearance.


    Mercury \Mer"cu*ry\, n. [L. Mercurius; akin to merx wares.]
    1. (Rom. Myth.) A Latin god of commerce and gain; -- treated
    by the poets as identical with the Greek Hermes, messenger
    of the gods, conductor of souls to the lower world, and
    god of eloquence.

    2. (Chem.) A metallic element mostly obtained by reduction
    from cinnabar, one of its ores. It is a heavy, opaque,
    glistening liquid (commonly called {quicksilver}), and is
    used in barometers, thermometers, etc. Specific gravity
    13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8.
    Mercury has a molecule which consists of only one atom. It
    was named by the alchemists after the god Mercury, and
    designated by his symbol, [mercury].

    Note: Mercury forms alloys, called amalgams, with many
    metals, and is thus used in applying tin foil to the
    backs of mirrors, and in extracting gold and silver
    from their ores. It is poisonous, and is used in
    medicine in the free state as in blue pill, and in its
    compounds as calomel, corrosive sublimate, etc. It is
    the only metal which is liquid at ordinary
    temperatures, and it solidifies at about -39[deg]
    Centigrade to a soft, malleable, ductile metal.

    3. (Astron.) One of the planets of the solar system, being
    the one nearest the sun, from which its mean distance is
    about 36,000,000 miles. Its period is 88 days, and its
    diameter 3,000 miles.

    4. A carrier of tidings; a newsboy; a messenger; hence, also,
    a newspaper. --Sir J. Stephen. ``The monthly Mercuries.''
    --Macaulay.

    5. Sprightly or mercurial quality; spirit; mutability;
    fickleness. [Obs.]

    He was so full of mercury that he could not fix long
    in any friendship, or to any design. --Bp. Burnet.

    6. (Bot.) A plant ({Mercurialis annua}), of the Spurge
    family, the leaves of which are sometimes used for
    spinach, in Europe.

    Note: The name is also applied, in the United States, to
    certain climbing plants, some of which are poisonous to
    the skin, esp. to the {Rhus Toxicodendron}, or poison
    ivy.

    {Dog's mercury} (Bot.), {Mercurialis perennis}, a perennial
    plant differing from {Mercurialis annua} by having the
    leaves sessile.

    {English mercury} (Bot.), a kind of goosefoot formerly used
    as a pot herb; -- called {Good King Henry}.

    {Horn mercury} (Min.), a mineral chloride of mercury, having
    a semitranslucent, hornlike appearance.


    boys-and-girls \boys-and-girls\ n. (Bot.)
    a Eurafrican annual ({Mercurialis annua}) naturalized in
    America as a weed; formerly dried for use as a purgative,
    diuretic or antisyphilitic.

    Syn: herb mercury, herbs mercury.
    [WordNet 1.5]

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