[1] : The Collaborative International Dictionary of English v.0.48

sulphur \sul"phur\, n. l., better sulfur: cf. f. soufre.
   1. chem. a nonmetallic element occurring naturally in large
      quantities, either combined as in the sulphides as
      pyrites and sulphates as gypsum, or native in volcanic
      regions, in vast beds mixed with gypsum and various earthy
      materials, from which it is melted out. symbol s. atomic
      weight 32. the specific gravity of ordinary octohedral
      sulphur is 2.05; of prismatic sulphur, 1.96.
      1913 webster

   note: it is purified by distillation, and is obtained as a
         lemon-yellow powder by sublimation, called flour, or
         flowers, of sulphur, or in cast sticks called roll
         sulphur, or brimstone. it burns with a blue flame and a
         peculiar suffocating odor. it is an ingredient of
         gunpowder, is used on friction matches, and in medicine
         as a laxative and insecticide, but its chief use is
         in the manufacture of sulphuric acid. sulphur can be
         obtained in two crystalline modifications, in
         orthorhombic octahedra, or in monoclinic prisms, the
         former of which is the more stable at ordinary
         temperatures. sulphur is the type, in its chemical
         relations, of a group of elements, including selenium
         and tellurium, called collectively the sulphur group,
         or family. in many respects sulphur resembles oxygen.
         1913 webster

   2. zool. any one of numerous species of yellow or orange
      butterflies of the subfamily pierinae; as, the clouded
      sulphur eurymus philodice syn. colias philodice,
      which is the common yellow butterfly of the eastern united
      states.
      1913 webster

   amorphous sulphur chem., an elastic variety of sulphur of
      a resinous appearance, obtained by pouring melted sulphur
      into water. on standing, it passes back into a brittle
      crystalline modification.

   liver of sulphur. old chem. see hepar.

   sulphur acid. chem. see sulphacid.

   sulphur alcohol. chem. see mercaptan.

   sulphur auratum l. old chem., a golden yellow powder,
      consisting of antimonic sulphide, sb2s5, -- formerly a
      famous nostrum.

   sulphur base chem., an alkaline sulphide capable of
      acting as a base in the formation of sulphur salts
      according to the old dual theory of salts. archaic

   sulphur dioxide chem., a colorless gas, so2, of a
      pungent, suffocating odor, produced by the burning of
      sulphur. it is employed chiefly in the production of
      sulphuric acid, and as a reagent in bleaching; -- called
      also sulphurous anhydride, and formerly sulphurous
      acid.

   sulphur ether chem., a sulphide of hydrocarbon radicals,
      formed like the ordinary ethers, which are oxides, but
      with sulphur in the place of oxygen.

   sulphur salt chem., a salt of a sulphacid; a sulphosalt.
      

   sulphur showers, showers of yellow pollen, resembling
      sulphur in appearance, often carried from pine forests by
      the wind to a great distance.

   sulphur trioxide chem., a white crystalline solid, so3,
      obtained by oxidation of sulphur dioxide. it dissolves in
      water with a hissing noise and the production of heat,
      forming sulphuric acid, and is employed as a dehydrating
      agent. called also sulphuric anhydride, and formerly
      sulphuric acid.

   sulphur whale. zool. see sulphur-bottom.

   vegetable sulphur bot., lycopodium powder. see under
      lycopodium.
      1913 webster
see also:
pierinae eurymus philodice colias philodice amorphous sulphur liver of sulphur hepar 
sulphur acid sulphacid sulphur alcohol mercaptan sulphur auratum 
sb2s5 sulphur base sulphur dioxide so2 sulphurous anhydride 
sulphurous acid sulphur ether sulphur salt sulphur showers sulphur trioxide 
so3 sulphuric anhydride sulphuric acid sulphur whale sulphur-bottom 
vegetable sulphur lycopodium 

[2] : WordNet (r) 2.0

sulphur
     n : an abundant tasteless odorless multivalent nonmetallic
         element; best known in yellow crystals; occurs in many
         sulphide and sulphate minerals and even in native form
         especially in volcanic regions syn: sulfur, s, atomic
         number 16
     v : treat with sulphur in order to preserve; "these dried fruits
         are sulphured" syn: sulfur
see also:
sulfur s atomic number 16 

[3] : Elements database 20001107

sulphur
symbol: s
atomic number: 16
atomic weight: 32.064
yellow, nonmetallic element belonging to group 16 of the periodic table.
it is an essential element in living organisms, needed in the amino acids
cysteine and methionine, and hence in many proteins. absorbed by plants
from the soil as sulphate ion.

[4] : U.S. Gazetteer (1990)

sulphur, in
  zip codes: 47174
sulphur, ky
  zip codes: 40070
sulphur, la city, fips 73640
  location: 30.22950 n, 93.35645 w
  population 1990: 20125 7812 housing units
  area: 25.2 sq km land, 0.0 sq km water
  zip codes: 70663
sulphur, ok city, fips 71350
  location: 34.50673 n, 96.97698 w
  population 1990: 4824 2199 housing units
  area: 10.9 sq km land, 0.4 sq km water
  zip codes: 73086

[5] : U.S. Gazetteer Places (2000)

sulphur, ok -- u.s. city in oklahoma
   population 2000:    4794
   housing units 2000: 2220
   land area 2000:     6.818133 sq. miles 17.658882 sq. km
   water area 2000:    0.145305 sq. miles 0.376337 sq. km
   total area 2000:    6.963438 sq. miles 18.035219 sq. km
   fips code:            71350
   located within:       oklahoma ok, fips 40
   location:             34.509159 n, 96.975371 w
   zip codes 1990:     73086
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    sulphur, ok
    sulphur

[6] : U.S. Gazetteer Places (2000)

sulphur, la -- u.s. city in louisiana
   population 2000:    20512
   housing units 2000: 8665
   land area 2000:     10.040262 sq. miles 26.004157 sq. km
   water area 2000:    0.000000 sq. miles 0.000000 sq. km
   total area 2000:    10.040262 sq. miles 26.004157 sq. km
   fips code:            73640
   located within:       louisiana la, fips 22
   location:             30.230355 n, 93.360837 w
   zip codes 1990:     70663
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    sulphur, la
    sulphur

Sulphur >> S Words
Sulphur, definition of term: Sulphur
sulphur_pag1.html

Sulphur Springs >> S Words
Sulphur Springs, definition of term: Sulphur Springs
sulphur+springs_pag1.html

Sulphur Dioxide >> S Words
Sulphur Dioxide, definition of term: Sulphur Dioxide
sulphur+dioxide_pag1.html