a. and sb. [f. EMERALD + -INE.]

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  A.  adj. Like an emerald in color: emerald-green.

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1855.  Chamb. Jrnl., III. 408/1. The moat … bears on its emeraldine breast parterres crowded with … lovely flowers.

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1859.  All Y. Round, No. 19. 448/2. Emeraldine sea.

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1863.  Thornbury, True as Steel, III. 316. The larch puts forth its emeraldine tufts.

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  B.  sb. 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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1864.  Pop. Sc. Rev., III. 437. A green aniline dye called emeraldine.

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