Definition of morphallaxis in English:


Pronunciation /ˌmôrfəˈlaksəs/ /ˌmɔrfəˈlæksəs/


  • Regeneration by the transformation of existing body tissues.

    ‘If the body of an intact Hydra is severed in two, it regenerates by morphallaxis, which does not require new growth.’
    • ‘He coined the terms morphallaxis and epimorphosis to describe the two major types of regeneration.’
    • ‘The result of morphallaxis is usually a smaller but complete individual, derived entirely from the tissues of part of the original animal.’
    • ‘Recently we have begun investigations of synaptic molecules up-regulated specifically during morphallaxis.’


Late 19th century from Greek morphē ‘form’ + allaxis ‘exchange’.