diaphanous

英[daɪ'æf(ə)nəs] 美[daɪ'æfənəs]

1. so thin as to transmit light;: "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"