单词	counterstain
释义	counterstain /ˈkaʊntəˌsteɪn / Biology noun An additional dye used in a microscopy specimen to produce a contrasting background or to make clearer the distinction between different kinds of tissue.Dapi was used as the chromosome counterstain for fluorescent specimens.... The shape of the nucleus was visualized using a DNA counterstain in all experiments. No counterstain was used on the sections, but routine coverslips were applied. verb [with object] Treat (a specimen) with a counterstain.After washing in tap water, specimens were briefly counterstained.... Background material in the specimen was counterstained dull yellow to red. The chromosomes are counterstained with DAPI (light blue).
随便看	overgrowth overhair overhand overhanding overhand knot overhang over-happy overhard over-hardened over-hardness over-harsh over-harshly over-harshness overharvest overharvesting over-haste overhastened overhastily over-hastiness overhasty overhaul overhauler Overhauser effect overhead overhead camshaft

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