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naphthyl group

[ naf-thil groop, nap-thil ]

noun

, Chemistry.
  1. Also called al·pha-naph·thyl group [al, -f, uh, -, naf, -thil groop, ‐-, nap, -thil], the univalent group C 1 0 H 7 –, having a replaceable hydrogen atom in the first, or alpha, position; 1-naphthyl group.
  2. Also called be·ta-naph·thyl group [bey, -t, uh, -, naf, -th, uh, l groop, ‐-, nap, -thil], the univalent group C 1 0 H 7 –, having a replaceable hydrogen atom in the second, or beta, position; 2-naphthyl group.


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naphthylnapier