vi.vt. (使)变色, 污染, (使)褪色

[ verb ]
change color, often in an undesired manner
<verb.change> color colour discolor
The shirts discolored

discolour \discolour\ v.
same as {discolor}. [Brit.]

Syn: discolor, colour, change color.
[WordNet 1.5]


Discolor \Dis*col"or\, v. t. [imp. & p. p. {Discolored}; p. pr.
& vb. n. {Discoloring}.] [OE. descolouren, OF. descolorer, F.
d['e]colorer, fr. L. dis- + cololare, coloratum, to color,
color color. See {Color}.] [Written also {discolour}.]
1. To alter the natural hue or color of; to change to a
different color; to stain; to tinge; as, a drop of wine
will discolor water; silver is discolored by sea water.

2. To alter the true complexion or appearance of; to put a
false hue upon.

To discolor all your ideas. --Watts.