Stain
A stain is a discoloration that can be clearly distinguished from the surface, material, or medium it is found upon. They are caused by the chemical or physical interaction of two dissimilar materials. Staining is used for biochemical research, metal staining, and art (e.g., wood staining, stained glass).
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Famous quotes containing the word stain:
“As for me, Abraham, Isaac, and Jacob are now only the subtlest imaginable essences, which would not stain the morning sky.”
—Henry David Thoreau (1817–1862)
“There is rust in my mouth,
the stain of an old kiss.”
—Anne Sexton (1928–1974)
“She comes to meet death,
To stain the altar of the goddess,
To hold her girl-throat
Toward the knife-thrust.”
—Hilda Doolittle (1886–1961)