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emeraldine

adjective
em·​er·​al·​dine | \-lˌdēn, -dīn\

Definition of emeraldine 

(Entry 1 of 2)

: emerald sense 1

emeraldine

noun
em·​er·​al·​dine | \-dēn\
plural -s

Definition of emeraldine (Entry 2 of 2)

: a blue basic compound yielding bottle-green salts with acids that is formed as an intermediate in the production of aniline black

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History and Etymology for emeraldine

Adjective

emerald entry 1 + -ine

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