indigoid

American

[in-di-goid] / ˈɪn dɪˌgɔɪd /

adjective

of or relating to that group of vat dyes that have a molecular structure similar to that of indigo.

noun

an indigoid substance.

indigoid British

/ ˈɪndɪˌɡɔɪd /

adjective

of, concerned with, or resembling indigo or its blue colour

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

any of a number of synthetic dyes or pigments related in chemical structure to indigo

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of indigoid

First recorded in 1905–10; indig(o) + -oid

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023