˜yÐÄvlog

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methylene

[ meth-uh-leen ]

adjective

Chemistry.
  1. containing the methylene group.


methylene

/ ˈ³¾É›Î¸ÉªËŒ±ô¾±Ë²Ô /

noun

  1. modifier of, consisting of, or containing the divalent group of atoms =CH 2

    a methylene group or radical

“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

methylene

/ ³¾Ä•³Ù³ó′ə-±ôŧ²Ô′ /

  1. A bivalent hydrocarbon radical, CH 2 . Because it has two unshared electrons, it is extremely reactive and occurs only as an intermediate byproduct in chemical reactions. Methylene is a component of unsaturated hydrocarbons.
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˜yÐÄvlog History and Origins

Origin of methylene1

< French ³¾Ã©³Ù³ó²â±ôè²Ô±ð (coined in 1834), equivalent to Greek ³¾Ã©³Ù³ó ( y ) wine ( mead 1 ) + ³óý±ô ( ŧ ) wood + French -è²Ô±ð -ene, taken to mean “wood-spirits†( vin ou liqueur spiritueuse du bois ), though elements of the compound are in the wrong order to give this sense
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˜yÐÄvlog History and Origins

Origin of methylene1

C19: from French ³¾Ã©³Ù³ó²â±ôè²Ô±ð, from Greek methu wine + hulŧ wood + -ene : originally referring to a substance distilled from wood
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Example Sentences

Examples have not been reviewed.

Ethyl acetate and methylene chloride are two common solvents used to extract caffeine from green coffee beans.

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“Exposure to methylene chloride has devastated families across this country for too long, including some who saw loved ones go to work and never come home,†EPA Administrator Michael Regan said in a statement.

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In a 2-year animal inhalation study sponsored by the National Toxicology Program, methylene chloride produced a significant increase in benign and malignant tumors of the lung and liver of male and female mice.

From

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

From

This is because methylene chloride is suggested to be mildly carcinogenic in high doses.

From

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