Definition of morphallaxis in English:

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Pronunciation: /ˌmôrfəˈlaksəs/


Regeneration by the transformation of existing body tissues.
Example sentences
  • 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.



Pronunciation: /-ˈlaktik/
Example sentences
  • Thus, the first key step in this morphallactic regeneration, when the head region is removed, is the specification of a new head region at the cut surface.
  • Following this, morphallactic regeneration occurs within the body segments adjacent to the new head.
  • In Hydra, regeneration is morphallactic since cell division is unnecessary and a complete Hydra can be regenerated from a piece of the body column.


Late 19th century: from Greek morphē 'form' + allaxis 'exchange'.

For editors and proofreaders

Syllabification: mor·phal·lax·is

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