paraphenylenediamine

noun

para·​phen·​yl·​ene·​di·​amine -ˌfen-ᵊl-ˌēn-ˈdī-ə-ˌmēn How to pronounce paraphenylenediamine (audio)
: the para isomer of phenylenediamine that is used especially in dyeing hair and sometimes causes an allergic reaction

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Cite this Entry

“Paraphenylenediamine.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/paraphenylenediamine. Accessed 21 Nov. 2024.

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