Definition of "petrochemistry" []

• The chemistry of petroleum and its derivatives. (noun)
• The branch of geochemistry that deals with the chemical composition of rocks. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "This fact has contributed to a better understanding of the most important reactions in petrochemistry."
• "Life on Titan might have chemistry similar to petrochemistry."
• "One of the dominant activities, especially since the mid-twentieth century, is petrochemistry, which has been established in the Gulf Plain, mainly in Veracruz and Tabasco and the Sonda de Campeche."