ScienceAugust 15, 2026
indigo
IN-di-goh
Definition
A deep, dark blue pigment or dye historically obtained from plants but now often produced synthetically.
Etymology
The word comes from the Greek 'indikon,' meaning 'Indian dye,' because the substance originally reached the Western world from India.
In the news
In the article, the students study the chemistry of indigo dye as part of a science workshop, noting its historical and cultural significance in both Japan and Britain.
News in Easy English: Japanese and British high schoolers study science together in Tokyo
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