† naphthameinn.

Forms: 1800s naphtameine, 1800s naphthamein, 1800s naphthameïn, 1800s naphthameine, 1800s naphthameïne.

Origin: A borrowing from French. Etymon: French naphtaméine.

Etymology: < French naphtaméine (1850 or earlier) < naphta- (in naphtalidine naphthalidine n.) + am- (in ammoniac ammonia: see ammoniac n.) + -éine -ein suffix. Compare German Naphtamein (1850 or earlier).

Chemistry. Obsolete. rare. Apparently only attested in dictionaries or glossaries.

A crystalline compound obtainable from naphthylamine which becomes an amorphous purple powder when moist and is used as a dyestuff; aminonaphthol, C₁₀H₆(OH)NH₂.

ΚΠ

1850 tr. R. Piria in Chem. Gaz. 15 Nov. 437 Naphtameine [Fr. naphtaméine], a new substance of a beautiful blue colour, which resembles orcine in some of its properties.

1866 H. Watts Dict. Chem. IV. 16 Naphthameine. Syn. with Oxynaphthylamine.

1892 New Sydenham Soc. Lexicon Naphthamein, a light, amorphous, purple powder..obtained by acting on a salt of naphthylamine with perchloride of iron.

This entry has been updated (OED Third Edition, June 2003; most recently modified version published online September 2021).

单词	naphthamein
释义	† naphthameinn. Forms: 1800s naphtameine, 1800s naphthamein, 1800s naphthameïn, 1800s naphthameine, 1800s naphthameïne. Origin: A borrowing from French. Etymon: French naphtaméine. Etymology: < French naphtaméine (1850 or earlier) < naphta- (in naphtalidine naphthalidine n.) + am- (in ammoniac ammonia: see ammoniac n.) + -éine -ein suffix. Compare German Naphtamein (1850 or earlier). Chemistry. Obsolete. rare. Apparently only attested in dictionaries or glossaries. A crystalline compound obtainable from naphthylamine which becomes an amorphous purple powder when moist and is used as a dyestuff; aminonaphthol, C₁₀H₆(OH)NH₂. ΚΠ 1850 tr. R. Piria in Chem. Gaz. 15 Nov. 437 Naphtameine [Fr. naphtaméine], a new substance of a beautiful blue colour, which resembles orcine in some of its properties. 1866 H. Watts Dict. Chem. IV. 16 Naphthameine. Syn. with Oxynaphthylamine. 1892 New Sydenham Soc. Lexicon Naphthamein, a light, amorphous, purple powder..obtained by acting on a salt of naphthylamine with perchloride of iron. This entry has been updated (OED Third Edition, June 2003; most recently modified version published online September 2021). < n.1850
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