digenesis

(dī′jen·ə·səs)

(biology) Sexual and asexual reproduction in succession.

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(dī-jĕn'ĭ-sĭs)
n.

Reproduction in distinctive patterns in alternate generations, typically involving alternating sexual and asexual cycles in succeeding host organisms, as seen in malarial parasites and certain trematode flatworms.

di'ge·net'ic (-jə-nĕt'ĭk) adj.

1. having two stages of multiplication, one sexual in the mature forms, the other asexual in the larval stages.
2. belonging to the subclass of flukes Digenea.

• d. trematodes — see digenea.

IN BRIEF: n. - Alternation of sexual and asexual beings constituting a single step in the line of descent from an ancestor

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The noun has one meaning:

Meaning #1: alternation of sexual and asexual generations
  Synonym: metagenesis

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