Definition of Amorphous. Meaning of Amorphous. Synonyms of Amorphous

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Definition of Amorphous

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Amorphous sulphur
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. 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. 2. (Zo["o]l.) Any one of numerous species of yellow or orange butterflies of the subfamily Pierin[ae]; as, the clouded sulphur (Eurymus, or Colias, philodice), which is the common yellow butterfly of the Eastern United States. 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. (Zo["o]l.) See Sulphur-bottom. Vegetable sulphur (Bot.), lycopodium powder. See under Lycopodium.
Paramorphous
Paramorphous Par`a*mor"phous, a. (Min.) Relating to paramorphism; exhibiting paramorphism.
Red or Amorphous
Phosphorus Phos"phor*us, n.; pl. Phosphori. [L., the morning star, Gr. ?, lit., light bringer; ? light + ? to bring.] 1. The morning star; Phosphor. 2. (Chem.) A poisonous nonmetallic element of the nitrogen group, obtained as a white, or yellowish, translucent waxy substance, having a characteristic disagreeable smell. It is very active chemically, must be preserved under water, and unites with oxygen even at ordinary temperatures, giving a faint glow, -- whence its name. It always occurs compined, usually in phosphates, as in the mineral apatite, in bones, etc. It is used in the composition on the tips of friction matches, and for many other purposes. The molecule contains four atoms. Symbol P. Atomic weight 31.0. 3. (Chem.) Hence, any substance which shines in the dark like phosphorus, as certain phosphorescent bodies. Bologna phosphorus (Chem.), sulphide of barium, which shines in the dark after exposure to light; -- so called because this property was discovered by a resident of Bologna. The term is sometimes applied to other compounds having similar properties. Metallic phosphorus (Chem.), an allotropic modification of phosphorus, obtained as a gray metallic crystalline substance, having very inert chemical properties. It is obtained by heating ordinary phosphorus in a closed vessel at a high temperature. Phosphorus disease (Med.), a disease common among workers in phosphorus, giving rise to necrosis of the jawbone, and other symptoms. Red, or Amorphous, phosphorus (Chem.), an allotropic modification of phosphorus, obtained as a dark red powder by heating ordinary phosphorus in closed vessels. It is not poisonous, is not phosphorescent, and is only moderately active chemically. It is valuable as a chemical reagent, and is used in the composition of the friction surface on which safety matches are ignited. Solar phosphori (Chem.), phosphorescent substances which shine in the dark after exposure to the sunlight or other intense light.

Meaning of Amorphous from wikipedia

- In condensed matter physics and materials science, an amorphous (from the Gr**** a, without, morphé, shape, form) or non-crystalline solid is a solid that...
- Amorphous silicon (a-Si) is the non-crystalline form of silicon used for solar cells and thin-film transistors in LCDs. Used as semiconductor material...
- An amorphous metal (also known as metallic gl**** or gl****y metal) is a solid metallic material, usually an alloy, with disordered atomic-scale structure...
- autoimmune diseases, such as lupus and rheumatoid arthritis. Inhalation of amorphous silicon dioxide, in high doses, leads to non-permanent short-term inflammation...
- Amorphous ice (non-crystalline or "vitreous" ice) is an amorphous solid form of water. Common ice is a crystalline material wherein the molecules are...
- Amorphous carbon is free, reactive carbon that does not have any crystalline structure. Amorphous carbon materials may be stabilized by terminating dangling-π...
- Amorphous computing refers to com****tional systems that use very large numbers of identical, parallel processors each having limited com****tional ability...
- third category of solids is amorphous solids, where the atoms have no periodic structure whatsoever. Examples of amorphous solids include gl****, wax, and...
- retain such a disordered structure upon freezing and readily convert into amorphous solids. In other polymers, the chains rearrange upon freezing and form...
- semi-crystalline or amorphous. Semi-crystalline polymers can undergo crystallization and melting transitions, whereas amorphous polymers do not. In polymers...
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