meth·​a·​phen·​i·​lene ˌmeth-ə-ˈfen-ᵊl-ˌēn How to pronounce methaphenilene (audio)
: a chemical compound C15H20N2S formerly used as an antihistamine

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Cite this Entry

“Methaphenilene.” Medical Dictionary, Merriam-Webster, Accessed 20 Jul. 2024.

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