the word for rainbow should ("should" is loose here, language is messy and wonderful) be something else since rainbows are just one form where this scattering occurs, and they also occur in halos, glories, iridescent clouds, and many many other phenomena unrelated to the rain
the best thing about the transparency of the word rainbow is that we also get wonderful wonderful words like dewbow, moonbow, fogbow, seaspray-bow, glassbow/beadbow, redbow (or I propose "duskbow"/"dawnbow"). For lots of information on practically every sort of atmospheric optical phenomenon check out this site: https://atoptics.co.uk/
This site has a very web 1.0 vibe to it, and so do many resources that it links to, they're fairly minimal sites that share photos and knowledge of atmospheric optics transparently. They're wonderful and I love them
I forgot about this website! I meant to try out the ice halo simulator program at some point. It's such a cool resource.
