n. 污垢

[计] 污染

[化] 污垢

Foul \Foul\, v. t. [imp. & p. p. {Fouled}; p. pr. & vb. n.
{Fouling}.]
1. To make filthy; to defile; to daub; to dirty; to soil; as,
to foul the face or hands with mire.

2. (Mil.) To incrust (the bore of a gun) with burnt powder in
the process of firing.

3. To cover (a ship's bottom) with anything that impered its
sailing; as, a bottom fouled with barnacles.

4. To entangle, so as to impede motion; as, to foul a rope or
cable in paying it out; to come into collision with; as,
one boat fouled the other in a race.