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indigo

play
noun in·di·go \ˈin-di-ˌgō\

Simple Definition of indigo

  • : a deep purplish-blue color

Source: Merriam-Webster's Learner's Dictionary

Full Definition of indigo

plural

indigos

or

indigoes

  1. 1 a :  a blue vat dye obtained from plants (as indigo plants) b :  the principal coloring matter C16H10N2O2 of natural indigo usually synthesized as a blue powder with a coppery luster

  2. 2 :  indigo plant

  3. 3 :  a deep reddish blue

Origin and Etymology of indigo

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


First Known Use: 1555


INDIGO Defined for Kids

indigo

play
noun in·di·go \ˈin-di-ˌgō\

Definition of indigo for Students

plural

indigos

or

indigoes

  1. 1 :  a blue dye made artificially or obtained especially formerly from plants (indigo plants)

  2. 2 :  a deep purplish blue




Medical Dictionary

indigo

play
noun in·di·go \ˈin-di-ˌgō\

Medical Definition of indigo

plural

indigos

or

indigoes

  1. 1a:  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

  2. 2:  indigo plant




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