smut

n. 煤塵、汙跡、黑穗病

vt. 弄髒

vi. 患黑穗病

學術名詞

劣煤：地球科學
沾污：紡織科技
污點：紡織科技
鋁污層｛鋁合金浸入苛姓蘇打水後之黑表層｝：金屬材料
黑穗病：林學

英文釋義

a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink
destructive diseases of plants (especially cereal grasses) caused by fungi that produce black powdery masses of spores
any fungus of the order Ustilaginales
an offensive or indecent word or phrase