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n. pl. mor·phal·lax·es (-lăk′sēz)
The regeneration of a body part involving structural or cellular reorganization of existing tissues, occurring chiefly in invertebrates.

[New Latin : morph(o)- + Greek allaxis, exchange (from allassein, to exchange, from allos, other; see al- in Indo-European roots).]


n, pl -laxes (-ˈlæksiːz)
(Zoology) zoology the transformation of one part into another that sometimes occurs during regeneration of organs in certain animals
[C20: New Latin, from morpho- + Greek allaxis exchange, from allassein to exchange, from allos other]


(ˌmɔr fəˈlæk sɪs)

n., pl. -lax•es (-ˈlæk siz)
the regeneration of a lost body part by the reorganization and growth of remaining or adjacent tissue.
[1901; morph- + Greek állaxis exchange, derivative (with -sis -sis) of allássein to exchange, ultimately derivative of állos other]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.morphallaxis - regeneration on a reduced scale of a body part; observed especially in invertebrates such as certain lobsters
regeneration - (biology) growth anew of lost tissue or destroyed parts or organs
References in periodicals archive ?
Likewise, not only does the much-investigated cnidarian freshwater polyp Hydra have amazing abilities to regenerate most of its body through morphallaxis but also it has pools of multipotent stem cells, commonly referred to as interstitial cells (I-cells), throughout the body, which allow complete regeneration from a few hundred cells (Bode et al, 1986; Siebert et al., 2008).
Burke, "Gut regeneration by morphallaxis in the sea cucumber Leptosynapta clarki (Heding, 1928)," Canadian Journal of Zoology, vol.
Planarian regeneration involves the generation of new tissue at the wound site via cell proliferation (blastema formation), and the remodeling of pre-existing tissues to restore symmetry and proportion (morphallaxis).