brown stain meaning

• [Architecture]
  

  A chocolate brown stain produced by fungus in the sapwood of some pine trees.

• Are your kids'teeth sprouting white spots or brown stains?
• My beautifully painted walls are getting all kinds of brown stains.
• The latex tends to impart brown stains on whatever it contacts.
• Its wings are of yellowish-green colour with brown stains.
• The knots are bleeding through, lighter than the dark brown stain.
• Q . I have a brown stain on my gray granite countertop.
• If you stain it a light color, those brown stains can occur.
• Ah, those brown stains in the dishwasher.
• There are brown stains all over the inside.
• The house is 70 years old with a dark brown stain on the shingles.

• "brown stain" meaning in Chinese: 边材褐变