Definition of Orimulsion in English:

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Pronunciation: /ˌɒrɪˈmʌlʃ(ə)n/


[mass noun] trademark in the US
A fuel consisting of an emulsion of bitumen in water.
Example sentences
  • The facility closed with the loss of hundreds of jobs after a bid to burn the controversial fuel Orimulsion at the plant failed.
  • Orimulsion is a bitumen and water mixture mined in Venezuela.
  • Orimulsion, a bitumen-in-water emulsified fuel produced in Venezuela, has shown increased use throughout the world as a replacement for heavy fuel oil


1980s: blend of Orinoco (the name of an oil belt in Venezuela, where the bitumen was originally extracted) and emulsion.

For editors and proofreaders

Line breaks: Ori|mul¦sion

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