Medical Definition of heteromorphosis
plural het·ero·mor·pho·ses \-ˌsēz\play
1: the production in an organism of an abnormal or misplaced part especially in place of one that has been lost (as the regeneration of a tail in place of a head)
2a: the production of a malformed or malposed tissue or organb: the formation of tissue of a different type from that from which it is derived
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