1) showing colours like those of the rainbow (iridescent)
2) a solid figure with a flat base and sides that are triangles or parallelograms; a solid of this form, made of glass, which breaks up white light into the colours of the rainbow (prism)
3) the band of colours as seen in a rainbow and usually described as red, orange, yellow, green, blue, indigo and violet; a wide range or sequence (spectrum)
something which one seems to see or experience during sleep
illusion, vision
wild or extravagant creative thought or mental pictures
imagination, dream
(the seeing of) something that does not really exist; a false or impossible idea
false appearance; false belief
containing many colours
multi-coloured
of various sorts, shapes etc
mixed, varied
spectrum
color spectrum
the band of colours as seen in a rainbow and usually described as red, orange, yellow, green, blue, indigo and violet; a wide range or sequence
color spectrum
iridescence
iridescence
