indigo

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noun in·di·go \ ˈin-di-ˌgō \

Definition of indigo

plural indigos or indigoes
1 a :a blue vat dye obtained from plants (such as indigo plants)
b :the principal coloring matter C16H10N2O2 of natural indigo usually synthesized as a blue powder with a coppery luster
3 :a deep reddish blue

Recent Examples of indigo from the Web

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Origin and Etymology of indigo

Italian dialect, from Latin indicum, from Greek indikon, from neuter of indikos Indic, from Indos India


INDIGO Defined for English Language Learners

indigo

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noun

Definition of indigo for English Language Learners

  • : a deep purplish-blue color


INDIGO Defined for Kids

indigo

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noun in·di·go \ ˈin-di-ˌgō \

Definition of indigo for Students

plural indigos or indigoes
1 :a blue dye made artificially or obtained especially formerly from plants ( indigo plants )
2 :a deep purplish blue

Medical Dictionary

indigo

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noun in·di·go \ ˈin-di-ˌgō \

medical Definition of indigo

plural indigos or indigoes
1 a :a blue dye obtained from indigo plants (as Indigofera tinctoria of Africa and India, I. anil of South America, and I. auriculata of Arabia and Egypt)
b :the principal coloring matter C16H10N2O2 of natural indigo usually synthesized as a blue powder with a coppery luster called also indigotin


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