What does the word diaphanous mean?

Answer: (especially of fabric) light, delicate, and translucent.

"a diaphanous dress of pale gold"

The word "diaphanous" means: so thin as to transmit light.

Use it in a sentence: "If a dress is so see-through that light shines through it, it's diaphanous. You could also call it "sheer" or "transparent," but diaphanous sounds much fancier."