Look up: Petroleum

1. Petroleum
   A sticky, oily, flammable liquid that is a complex mixture of organic compounds (mostly hydrocarbons) and other may vary in colour from nearly colourless to black. Basically, it is another word for crude oil. 'Petr' means something like 'rock' and 'oleum' means something like 'oil'.
   Found on http://www.kcpc.usyd.edu.au/discovery/gl
   
   
2. Petroleum
   Crude oil or any fraction thereof that is liquid under normal conditions of temperature and pressure. The term includes petroleum-based substances comprising a complex blend of hydrocarbons derived from crude oil through the process of separation, conversion, upgrading, and finishing, such as motor ...
   Found on http://www.epa.gov/OCEPAterms/
   
   
3. petroleum
   [n] - a dark oil consisting mainly of hydrocarbons
   Found on http://www.webdictionary.co.uk/definitio
   
   
4. Petroleum
   Means ‘Stone oil` from the Latin petra oleum, an inflammable liquid varying in color (yellow-black), consisting mainly of hydrocarbons. Petroleum is found in sedimentary strata of the Earth`s crust.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
5. petroleum
   a substance occurring naturally in the earth and composed mainly of mixtures of chemical compounds of carbon and hydrogen, with or without other nonmetallic elements such as sulfur, oxygen, and nitrogen. The compounds that compose it may be in the gaseous, liquid, or solid state, depending on their nature and on the existent conditions of temperature and pressure.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
6. Petroleum
   An oily, thick, flammable, usually dark coloured liquid that is a form of bitumen or a mixture of various hydrocarbons, occurring naturally in various parts of the world and often separated by distillation into petrol, naphtha, benzene, kerosene and paraffin.
   Found on http://www.diracdelta.co.uk/science/sour
   
   
7. Petroleum
   Generic name for hydrocarbons, including crude oil, NGLs, natural gas and their products.
   Found on http://www.chemicalglossary.net/definiti
   
   
8. Petroleum
   A generic name for hydrocarbons, including crude oil, natural gas liquids, natural gas and their products.
   Found on http://www.oilandgasuk.co.uk/glossary.cf
   
   
9. petroleum
   a generic name for hydrocarbons, including crude oil, natural gas liquids, natural gas and their products;
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
10. Petroleum
    Oil as found in its natural state under the ground. A generic term that refers to oil and oil products in all forms such as crude oil, unfinished oil and similar terms.
    Found on http://www.neo.ne.gov/statshtml/glossary
    
    
11. Petroleum
    Crude oil or any fraction thereof that is liquid under normal conditions of temperature and pressure. The term includes petroleum-based substances comprising a complex blend of hydrocarbons derived from crude oil through the process of separation, conversion, upgrading, and finishing, such as motor fuel, jet oil, lubricants, petroleum solvents, and used oil.
    Found on http://www.encyclo.co.uk/visitor-contrib
    
    
12. Petroleum
    Pe·tro'le·um noun [ New Latin , from Latin petra a rock + oleum oil: confer French pétrole . Confer Petrify , and Oil .] Rock oil, mineral oil, or natural oil, a dark brown or greenish inflammable liquid, which, at ...
    Found on http://www.encyclo.co.uk/webster/P/66
    
    
13. petroleum
    Rock oil, mineral oil, or natural oil, a dark brown or greenish inflammable liquid, which, at certain points, exists in the upper strata of the earth, from whence it is pumped, or forced by pressure of the gas attending it. It consists of a complex mixture of various hydrocarbons, largely of the met...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
14. petroleum
    crude oil noun a dark oil consisting mainly of hydrocarbons
    Found on http://wordnetweb.princeton.edu/perl/web
    
    
15. petroleum
    (pә-tro´le-әm) a thick natural oil obtained from beneath the earth. It consists of a mixture of various hydrocarbons of the paraffin and olefin series.
    Found on http://www.encyclo.co.uk/local/21001
    
    
16. Petroleum
    • (n.) Rock oil, mineral oil, or natural oil, a dark brown or greenish inflammable liquid, which, at certain points, exists in the upper strata of the earth, from whence it is pumped, or forced by pressure of the gas attending it. It consists of a complex mixture of various hydrocarbons, largel...
    Found on http://thinkexist.com/dictionary/meaning
    
    
17. petroleum
    complex mixture of hydrocarbons that occur in the Earth in liquid, gaseous, or solid forms. The term is often restricted to the liquid form, commonly ... [277 related articles]
    Found on http://www.britannica.com/eb/a-z/p/51
    
    
18. petroleum
    petroleum A naturally occurring liquid mixture of complex hydrocarbon compounds that yields combustible fuels, petrochemicals, and lubricants upon distillation; usually found in deposits beneath the earth's surface and thought to have originated from plant and animal remains of the geologic past. It...
    Found on http://www.wordinfo.info/words/index/inf
    
    
19. Petroleum
    A generic term applied to oil and oil products in all forms, such as crude oil, lease condensate, unfinished oils, petroleum products, natural gas plant liquids, and non-hydrocarbon compounds blended into finished petroleum products. See crude oil.
    Found on http://www.encyclo.co.uk/visitor-contrib
    
    
20. petroleum
    petroleum, oily, flammable liquid that occurs naturally in deposits, usually beneath the surface of the earth; it is also called crude oil. It consists principally of a mixture of hydrocarbons, with traces of various nitrogenous and sulfurous compounds.Sections in this article:IntroductionOrigin and...
    Found on http://www.infoplease.com/ce6/sci/A08386
    
    
21. Petroleum
    Petroleum is an oily, thick, flammable, usually dark coloured liquid that is a form of bitumen or a mixture of various hydrocarbons, occurring naturally in various parts of the world and often separated by distillation into petrol, naphtha, benzene, kerosene and paraffin.
    Found on http://www.probertencyclopaedia.com/brow
    
    
22. Petroleum
    Petroleum is a mineral oil from which petrol is derived.
    Found on http://www.probertencyclopaedia.com/brow
    
    
23. petroleum
    Type: Term Pronunciation: pĕ-trō′lē-ŭm Definitions: 1. A mixture of liquid hydrocarbons found in the earth in various parts of the world and believed to be derived from fossilized animal and plant remains; the source of petrolatum, in addition to its use for lighting and he...
    Found on http://www.medilexicon.com/medicaldictio
    
    
24. petroleum
    Click images to enlargeNatural mineral oil, a thick greenish-brown flammable liquid found underground in permeable rocks. Petroleum consists of hydrocarbons mixed with oxygen, sulphur, nitrogen, and other elements in varying proportions. It is thought to be derived from ancient organic material that has been converted...
    Found on http://www.talktalk.co.uk/reference/ency
    
    
25. Petroleum
    `Petroleum` (oleum--> (oil)) or `crude oil` is a naturally occurring, flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earth`s surface. Petroleum is recovered mostly...
    Found on http://en.wikipedia.org/wiki/Petroleum