名詞 mural:

1. a painting that is applied to a wall surface
   同義詞：wall painting

形容詞 mural:

1. of or relating to walls

1. John, the artist, could see the commission for the murals going up in smoke.
   藝術(shù)家約翰看出委托制作壁畫的事己告吹了。
2. Dunhuang is famous for its mural art.
   敦煌以它的壁畫藝術(shù)而聞名。
3. There is a large mural in the temple.
   那個寺院里有一幅很大的壁畫。

mu.ral

n.（名詞）
A very large image, such as a painting or an enlarged photograph, applied directly to a wall or ceiling.
壁畫：非常大的畫像，如直接掛在墻上或者天花板上的油畫或者放大的照片
adj.（形容詞）
Of, relating to, or resembling a wall.
墻壁的：墻的、有關(guān)墻的或似墻的
Painted on or applied to a wall.
畫在或者掛在墻上的

來源：
Middle English [of a wall]
中古英語 [墻的]
from Old French
源自 古法語
from Latin môr3lis
源自 拉丁語 môr3lis
from môrus [wall]
源自 môrus [墻]

【引伸】
mu.ralist
n.（名詞）