Search on: PETROLEUM 
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Descriptor English:   Petroleum 
Descriptor Spanish:   Petróleo 
Descriptor Portuguese:   Petróleo 
Synonyms English:   Crude Oil
Crude Oils
Oil, Crude
Oils, Crude
Tree Number:   D20.345.630
Definition English:   Naturally occurring complex liquid hydrocarbons which, after distillation, yield combustible fuels, petrochemicals, and lubricants. 
See Related English:   Oil and Gas Fields
History Note English:   was in Cat J only 1975-81, was in Cat D & J 1968-74, was in Cat D only 1963-67 
Allowable Qualifiers English:  
AE adverse effects AN analysis
CL classification EC economics
HI history ME metabolism
MI microbiology PS parasitology
PO poisoning RE radiation effects
ST standards SN statistics & numerical data
SD supply & distribution TO toxicity
VI virology  
Record Number:   22609 
Unique Identifier:   D010578 

Occurrence in VHL: