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methylene chloride

American  

noun

Chemistry.
  1. a colorless, volatile liquid, CH 2 Cl 2 , used chiefly as a solvent, as a refrigerant, and as a local anesthetic in dentistry.


methylene chloride British  

noun

  1. another name for dichloromethane

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of methylene chloride

First recorded in 1875–80

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.

But the results lined up with recent findings showing possible links between autism and exposure to metals and certain solvents during pregnancy or early childhood, including a solvent called methylene chloride.

From Salon • Aug. 21, 2025

After producers decaffeinate coffee beans using methylene chloride, they steam the beans and dry them.

From Salon • Jul. 23, 2024

The rule banning methylene chloride is the second risk management rule to be finalized by President Joe Biden’s administration under landmark 2016 amendments to the Toxic Substances Control Act.

From Seattle Times • Apr. 30, 2024

Wendy Hartley, whose son Kevin died from methylene chloride poisoning after refinishing a bathtub at work, called the new rule “a huge step that will protect vulnerable workers.”

From Seattle Times • Apr. 30, 2024

The toy consists of two glass bulbs connected by a glass tube with a highly volatile liquid, methylene chloride, stored within.

From Science Daily • Mar. 14, 2024

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