emeraldineadj.n.
/ˈɛm(ə)rəldɪn//ˈɛm(ə)rəldʌɪn//ˈɛm(ə)rəldiːn/ A. adj.
Like an emerald in colour; emerald-green.
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the world > matter > colour > named colours > green or greenness > [adjective] > bright green
smaragdine1591
emerald-green1637
poison green1749
emeraldine1855
lime-green1890
twig-green1892
1855 Chambers's Jrnl. 3 408 The moat..bears on its emeraldine breast parterres crowded with..lovely flowers.
1859 All Year Round 3 Sept. 448 Emeraldine sea.
1863 W. Thornbury True as Steel III. 316 The larch puts forth its emeraldine tufts.
B. n.
A dye formed from aniline treated with hydrochloric acid and chlorate of potassium, or from a salt of aniline treated with sesquichloride of iron; aniline-green.
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the world > matter > colour > named colours > green or greenness > green colouring matter > [noun] > pigment or dye > dyes and dyestuffs
greening worta1200
greening weeda1399
spinach-green1845
emeraldine1864
methyl green1873
malachite green1875
viridine1875
1864 Pop. Sc. Rev. III. 437 A green aniline dye called emeraldine.
This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2018).
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adj.n.1855