名詞 gossamer:

1. a gauze fabric with an extremely fine texture
2. filaments from a web that was spun by a spider
   同義詞：cobweb

形容詞 gossamer:

1. characterized by unusual lightness and delicacy
   同義詞：ethereal
2. so thin as to transmit light
   同義詞：diaphanous, filmy, gauzy, gauze-like, see-through, sheer, transparent, vaporous, vapourous, cobwebby

gos.sa.mer

n.（名詞）
A soft, sheer, gauzy fabric.
薄紗：一種軟的，薄的，透明的纖維品
Something delicate, light, or flimsy.
輕而薄的物品：纖細(xì)的，輕盈的或輕而薄的東西
A fine film of cobwebs often seen floating in the air or caught on bushes or grass.
蜘蛛網(wǎng)：通常掛在空中，灌木叢中或草叢中的完整的一層蜘蛛網(wǎng)
adj.（形容詞）
Sheer, light, delicate, or tenuous.See Synonyms at airy
極薄的，輕的，精細(xì)的，虛無(wú)縹緲的參見(jiàn) airy

來(lái)源：
Middle English gossomer
中古英語(yǔ) gossomer
gos [goose] * see goose
gos [鵝] *參見(jiàn) goose
somer [summer] [probably from the abundance of gossamer during early autumn when geese are in season] * see summer
somer [夏天] [可能源于初秋期間當(dāng)鵝處于發(fā)情期時(shí)，蛛絲的數(shù)量較多] *參見(jiàn) summer

【引伸】
gos.samery
adj.（形容詞）