1. resembling or having the deep blue color of indigo
Usage: technical

Examples

• The indigoid dye produced a rich, dark blue fabric.
• Scientists identified several indigoid compounds in the plant extract.
• The artist mixed pigments to achieve an indigoid shade for the night sky.
• Ancient textiles often featured indigoid coloring from natural sources.
• The laboratory synthesized various indigoid molecules for research purposes.