ORTHOCHROMATIC

Orthochromatic

In chemistry orthochromatic refers to a dye or stain which does not change color on binding to a target as opposed to metachromatic stains which change color. In literal sense it comes from ortho ie straight or correct + chromatic ie colored. As for example Toluidine blue stains nucleic acids by its orthochromatic color but it stains mast cell granules by becoming metachromatic which in this case is red.

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orthochromatic

Adjective

  1. Being uniformly sensitive across the entire visible range, and thus reproducing colours faithfully
  2. Sensitive to all colours except red


The above text is a snippet from Wiktionary: orthochromatic
and as such is available under the Creative Commons Attribution/Share-Alike License.

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