1. (布料)轻薄透明的，薄如蝉翼的
Diaphanous cloth is very thin and almost transparent.

1. so thin as to transmit light

e.g. a hat with a diaphanous veil
filmy wings of a moth
gauzy clouds of dandelion down
gossamer cobwebs
sheer silk stockings
transparent chiffon
vaporous silks

Synonym: filmygauzygauze-likegossamersee-throughsheertransparentvaporousvapourouscobwebby