olefin
Americannoun
Other Word Forms
Etymology
Origin of olefin
1855–60; < French oléf ( iant ) ( see olefiant gas) + -in 2
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Spot olefin and urea prices are surging on plant closures and supply disruptions linked to the Strait of Hormuz, while the trend’s durability hinges on the duration of the conflict and shipping access, he says.
From The Wall Street Journal ● Mar. 5, 2026
Operating rates are likely to remain suppressed, prolonging margin pressure across the olefin and polymer value chain, he says.
From The Wall Street Journal ● Jan. 6, 2026
He cuts the company’s 2026-2027 earnings forecasts by 55%-58% on lower olefin price assumptions and weaker projected Ebitda margins.
From The Wall Street Journal ● Nov. 24, 2025
No one looked at what happens if the olefin reacts with ozone instead of hydroxyl radicals, he says.
From Science Magazine ● Dec. 11, 2023
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
