methylene
noun
meth·y·lene
ˈme-thə-ˌlēn 
-lən
: a divalent hydrocarbon group CH2 derived from methane
Examples of methylene in a Sentence
Recent Examples on the Web
To avoid it, scan ingredient lists for toluene sulfonamide/formaldehyde resin, formalin, and methylene glycol – all ingredients that indicate formaldehyde is either in the formula or released by the formula.
—
Marci Robin, Allure, 29 Jan. 2024
Brazilian blowout products are often marketed as formaldehyde-free, but Baum tested some of them in his lab and found that the methylene glycol emitted relatively high concentrations of formaldehyde.
—Syris Valentine, Scientific American, 14 Nov. 2023
An example includes methylene glycol, often part of the formula in these products.
—Elizabeth Ayoola, Essence, 20 Oct. 2023
There’s benzene, methylene, and aromatic hydrocarbons, carcinogenic.
—Lindsey Bartlett, Forbes, 28 Apr. 2021
Covestro also manufacturers the more technically-challenging methylene diphenyl diisocyanate, or MDI, used to make polyurethanes for insulation.
—Andrew Marc Noel, Bloomberg.com, 17 Sep. 2020
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Marci Robin, Allure, 29 Jan. 2024
Brazilian blowout products are often marketed as formaldehyde-free, but Baum tested some of them in his lab and found that the methylene glycol emitted relatively high concentrations of formaldehyde.
—Syris Valentine, Scientific American, 14 Nov. 2023
An example includes methylene glycol, often part of the formula in these products.
—Elizabeth Ayoola, Essence, 20 Oct. 2023
There’s benzene, methylene, and aromatic hydrocarbons, carcinogenic.
—Lindsey Bartlett, Forbes, 28 Apr. 2021
Covestro also manufacturers the more technically-challenging methylene diphenyl diisocyanate, or MDI, used to make polyurethanes for insulation.
—Andrew Marc Noel, Bloomberg.com, 17 Sep. 2020
Dictionary Entries Near methylene
Cite this Entry
“Methylene.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/methylene. Accessed 1 Dec. 2024.
Copy CitationMedical Definition
methylene
noun
meth·y·lene
ˈmeth-ə-ˌlēn
-lən
-lən
: a bivalent hydrocarbon radical CH2 derived from methane by removal of two hydrogen atoms
Love words? Need even more definitions?
Merriam-Webster unabridged
Share