Definition of metachromasia in English:
metachromasia
noun ˌmɛtəkrə(ʊ)ˈmeɪzɪəˌmedəkrōˈmāZH(ē)ə
mass nounBiology 1The property of certain biological materials of staining a different colour from that of the stain used.
Example sentencesExamples
- The metachromasy was found to be independent of phase transition temperature of vesicles.
- The change in color of a dye which results from metachromasy is not due to a change in pH of an aqueous solution containing it.
- In some conditions the increase of stirring time leads to a loss of metachromasy that is related to the dye deaggregation.
- In these cases, metachromasy is an indication of dimerization and polymerization of the adsorbed dyes.
- The literature contains numerous reviews of metachromasy, especially in the histological and histochemical journals.
- 1.1 The property of certain stains of changing colour in the presence of certain biological materials.
Example sentencesExamples
- Under these conditions PBs appeared light blue, while metachromasia was observed for globoid inclusions that stained purple-blue.
Derivatives
adjective
Biology These include the metachromatic stains or enzymatic stains.
Example sentencesExamples
- Case 2 involved a 3-year-old boy who received a mismatched unrelated bone marrow transplant for metachromatic leukodystrophy.
- The classic leukodystrophies include adrenoleukodystrophy, Krabbe's globoid cell, and metachromatic leukodystrophy, and a few other less well known entities.
- Fragments of metachromatic chondromyxoid extracellular material contained cells that were reminiscent of chondrocytes.
- Chordoma also presents with intensely metachromatic myxoid stroma, and the tumor cells may be single or arranged in cords.
Origin
Early 20th century: modern Latin, from meta- (expressing change) + Greek khrōma 'colour'.