资料来源 : pyDict

流星

资料来源 : Webster's Revised Unabridged Dictionary (1913)

   {Shooting iron}, a firearm. [Slang, U.S.]

   {Shooting star}.
   (a) (Astron.) A starlike, luminous meteor, that, appearing
       suddenly, darts quickly across some portion of the sky,
       and then as suddenly disappears, leaving sometimes, for a
       few seconds, a luminous train, -- called also {falling
       star}.

   Note: Shooting stars are small cosmical bodies which
         encounter the earth in its annual revolution, and which
         become visible by coming with planetary velocity into
         the upper regions of the atmosphere. At certain
         periods, as on the 13th of November and 10th of August,
         they appear for a few hours in great numbers,
         apparently diverging from some point in the heavens,
         such displays being known as meteoric showers, or star
         showers. These bodies, before encountering the earth,
         were moving in orbits closely allied to the orbits of
         comets. See {Leonids}, {Perseids}.
   (b) (Bot.) The American cowslip ({Dodecatheon Meadia}). See
       under {Cowslip}.

   {Shooting stick} (Print.), a tapering piece of wood or iron,
      used by printers to drive up the quoins in the chase.
      --Hansard.



   {Blazing star}, {Double star}, {Multiple star}, {Shooting
   star}, etc. See under {Blazing}, {Double}, etc.

   {Nebulous star} (Astron.), a small well-defined circular
      nebula, having a bright nucleus at its center like a star.
      

   {Star anise} (Bot.), any plant of the genus Illicium; -- so
      called from its star-shaped capsules.

   {Star apple} (Bot.), a tropical American tree ({Chrysophyllum
      Cainito}), having a milky juice and oblong leaves with a
      silky-golden pubescence beneath. It bears an applelike
      fruit, the carpels of which present a starlike figure when
      cut across. The name is extended to the whole genus of
      about sixty species, and the natural order
      ({Sapotace[ae]}) to which it belongs is called the
      Star-apple family.

   {Star conner}, one who cons, or studies, the stars; an
      astronomer or an astrologer. --Gascoigne.

   {Star coral} (Zo["o]l.), any one of numerous species of stony
      corals belonging to {Astr[ae]a}, {Orbicella}, and allied
      genera, in which the calicles are round or polygonal and
      contain conspicuous radiating septa.

   {Star cucumber}. (Bot.) See under {Cucumber}.

   {Star flower}. (Bot.)
      (a) A plant of the genus {Ornithogalum};
          star-of-Bethlehem.
      (b) See {Starwort}
      (b) .
      (c) An American plant of the genus {Trientalis}
          ({Trientalis Americana}). --Gray.

   {Star fort} (Fort.), a fort surrounded on the exterior with
      projecting angles; -- whence the name.

   {Star gauge} (Ordnance), a long rod, with adjustable points
      projecting radially at its end, for measuring the size of
      different parts of the bore of a gun.

   {Star grass}. (Bot.)
      (a) A small grasslike plant ({Hypoxis erecta}) having
          star-shaped yellow flowers.
      (b) The colicroot. See {Colicroot}.

   {Star hyacinth} (Bot.), a bulbous plant of the genus {Scilla}
      ({S. autumnalis}); -- called also {star-headed hyacinth}.
      

   {Star jelly} (Bot.), any one of several gelatinous plants
      ({Nostoc commune}, {N. edule}, etc.). See {Nostoc}.

   {Star lizard}. (Zo["o]l.) Same as {Stellion}.

   {Star-of-Bethlehem} (Bot.), a bulbous liliaceous plant
      ({Ornithogalum umbellatum}) having a small white starlike
      flower.

   {Star-of-the-earth} (Bot.), a plant of the genus {Plantago}
      ({P. coronopus}), growing upon the seashore.

   {Star polygon} (Geom.), a polygon whose sides cut each other
      so as to form a star-shaped figure.

   {Stars and Stripes}, a popular name for the flag of the
      United States, which consists of thirteen horizontal
      stripes, alternately red and white, and a union having, in
      a blue field, white stars to represent the several States,
      one for each.

            With the old flag, the true American flag, the
            Eagle, and the Stars and Stripes, waving over the
            chamber in which we sit.              --D. Webster.

   {Star showers}. See {Shooting star}, under {Shooting}.

   {Star thistle} (Bot.), an annual composite plant ({Centaurea
      solstitialis}) having the involucre armed with radiating
      spines.

   {Star wheel} (Mach.), a star-shaped disk, used as a kind of
      ratchet wheel, in repeating watches and the feed motions
      of some machines.

   {Star worm} (Zo["o]l.), a gephyrean.

   {Temporary star} (Astron.), a star which appears suddenly,
      shines for a period, and then nearly or quite disappears.
      These stars are supposed by some astronometers to be
      variable stars of long and undetermined periods.

   {Variable star} (Astron.), a star whose brilliancy varies
      periodically, generally with regularity, but sometimes
      irregularly; -- called {periodical star} when its changes
      occur at fixed periods.

   {Water star grass} (Bot.), an aquatic plant ({Schollera
      graminea}) with small yellow starlike blossoms.

资料来源 : WordNet®

shooting star
     n : a streak of light in the sky at night that results when a
         meteoroid hits the earth's atmosphere and air friction
         causes the meteoroid to melt or vaporize or explode [syn:
          {meteor}]