vt 1 : to cause discoloration of <smoking s teeth> 2 : to color by processes affecting chemically or otherwise the material itself < bacteria with a fluorescent dye> vi : to receive a stain
, n 1 : a discolored spot or area (as on the skin or teeth) - see PORT-WINE STAIN 2 : a preparation (as of dye or pigment) used in staining something : esp : a dye or mixture of dyes used in microscopy to make minute and transparent structures visible, to differentiate tissue elements, or to produce specific chemical reactions .
Similar sounding terms: Cy·do·nia cy·ton se·ton stone
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