Definition of metachrosis in English:

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Pronunciation: /ˌmɛtəˈkrəʊsɪs/


[mass noun] Zoology
The ability of chameleons and some other animals to change colour.
Example sentences
  • Our data also emphasize the dual neural and endocrine character of metachrosis in the Ambystoma larva.
  • Color changing or metachromatism or metachrosis is common in chordates and in vertebrates such as fish, amphibians and in some types of lizards.
  • Melanophore cells are the main controls for metachrosis.


Late 19th century: modern Latin, from meta- (denoting a change of condition) + Greek khrōsis 'colouring'.

For editors and proofreaders

Line breaks: meta|chro¦sis

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