Source : Webster's Revised Unabridged Dictionary (1913)

Spanish \Span"ish\, a.
   Of or pertaining to Spain or the Spaniards.

   {Spanish bayonet} (Bot.), a liliaceous plant ({Yucca
      alorifolia}) with rigid spine-tipped leaves. The name is
      also applied to other similar plants of the Southwestern
      United States and mexico. Called also {Spanish daggers}.
      

   {Spanish bean} (Bot.) See the Note under {Bean}.

   {Spanish black}, a black pigment obtained by charring cork.
      --Ure.

   {Spanish broom} (Bot.), a leguminous shrub ({Spartium
      junceum}) having many green flexible rushlike twigs.

   {Spanish brown}, a species of earth used in painting, having
      a dark reddish brown color, due to the presence of
      sesquioxide of iron.

   {Spanish buckeye} (Bot.), a small tree ({Ungnadia speciosa})
      of Texas, New Mexico, etc., related to the buckeye, but
      having pinnate leaves and a three-seeded fruit.

   {Spanish burton} (Naut.), a purchase composed of two single
      blocks. A double Spanish burton has one double and two
      single blocks. --Luce (Textbook of Seamanship).

   {Spanish chalk} (Min.), a kind of steatite; -- so called
      because obtained from Aragon in Spain.

   {Spanish cress} (Bot.), a cruciferous plant ({lepidium
      Cadamines}), a species of peppergrass.

   {Spanish curiew} (Zo["o]l.), the long-billed curlew. [U.S.]
      

   {Spanish daggers} (Bot.) See {Spanish bayonet}.

   {Spanish elm} (Bot.), a large West Indian tree ({Cordia
      Gerascanthus}) furnishing hard and useful timber.

   {Spanish feretto}, a rich reddish brown pigment obtained by
      calcining copper and sulphur together in closed crucibles.
      

   {Spanish flag} (Zo["o]l.), the California rockfish
      ({Sebastichthys rubrivinctus}). It is conspicuously
      colored with bands of red and white.

   {Spanish fly} (Zo["o]l.), a brilliant green beetle, common in
      the south of Europe, used for raising blisters. See
      {Blister beetle} under {Blister}, and {Cantharis}.

   {Spanish fox} (Naut.), a yarn twisted against its lay.

   {Spanish grass}. (Bot.) See {Esparto}.

   {Spanish juice} (Bot.), licorice.

   {Spanish leather}. See {Cordwain}.

   {Spanish mackerel}. (Zo["o]l.)
   (a) A species of mackerel ({Scomber colias}) found both in
       Europe and America. In America called {chub mackerel},
       {big-eyed mackerel}, and {bull mackerel}.
   (b) In the United States, a handsome mackerel having bright
       yellow round spots ({Scomberomorus maculatus}), highly
       esteemed as a food fish. The name is sometimes
       erroneously applied to other species. See Illust. under
       Mackerel.

   {Spanish main}, the name formerly given to the southern
      portion of the Caribbean Sea, together with the contiguous
      coast, embracing the route traversed by Spanish treasure
      ships from the New to the Old World.

   {Spanish moss}. (Bot.) See {Tillandsia}.

   {Spanish needles} (Bot.), a composite weed ({Bidens
      bipinnata}) having achenia armed with needlelike awns.

   {Spanish nut} (Bot.), a bulbous plant ({Iris Sisyrinchium})
      of the south of Europe.

   {Spanish potato} (Bot.), the sweet potato. See under
      {Potato}.

   {Spanish red}, an ocherous red pigment resembling Venetian
      red, but slightly yellower and warmer. --Fairholt.

   {Spanish reef} (Naut.), a knot tied in the head of a
      jib-headed sail.

   {Spanish sheep} (Zo["o]l.), a merino.

   {Spanish white}, an impalpable powder prepared from chalk by
      pulverizing and repeated washings, -- used as a white
      pigment.

   {Spanish windlass} (Naut.), a wooden roller, with a rope
      wound about it, into which a marline spike is thrust to
      serve as a lever.

Blister \Blis"ter\, n. [OE.; akin to OD. bluyster, fr. the same
   root as blast, bladder, blow. See {Blow} to eject wind.]
   1. A vesicle of the skin, containing watery matter or serum,
      whether occasioned by a burn or other injury, or by a
      vesicatory; a collection of serous fluid causing a
      bladderlike elevation of the cuticle.

            And painful blisters swelled my tender hands.
                                                  --Grainger.

   2. Any elevation made by the separation of the film or skin,
      as on plants; or by the swelling of the substance at the
      surface, as on steel.

   3. A vesicatory; a plaster of Spanish flies, or other matter,
      applied to raise a blister. --Dunglison.

   {Blister beetle}, a beetle used to raise blisters, esp. the
      {Lytta (or Cantharis) vesicatoria}, called {Cantharis} or
      {Spanish fly} by druggists. See {Cantharis}.

   {Blister fly}, a blister beetle.

   {Blister plaster}, a plaster designed to raise a blister; --
      usually made of Spanish flies.

   {Blister steel}, crude steel formed from wrought iron by
      cementation; -- so called because of its blistered
      surface. Called also {blistered steel}.

   {Blood blister}. See under {Blood}.

Cantharis \Can"tha*ris\, n.; pl. {Cantharides}. [L., a kind of
   beetle, esp. the Spanish fly, Gr. kanqari`s.] (Zo["o]l.)
   A beetle ({Lytta, or Cantharis, vesicatoria}), havin1g an
   elongated cylindrical body of a brilliant green color, and a
   nauseous odor; the blister fly or blister beetle, of the
   apothecary; -- also called {Spanish fly}. Many other species
   of {Lytta}, used for the same purpose, take the same name.
   See {Blister beetle}, under {Blister}. The plural form in
   usually applied to the dried insects used in medicine.

Source : WordNet®

Spanish fly
     n : green beetle of southern Europe