heterogenesis (def 1).
the supposed generation of offspring completely and permanently different from the parent.
the supposed production of offspring completely unlike either parent
another name for abiogenesis, alternation of generations

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  • xenograft

    a graft obtained from a member of one species and transplanted to a member of another species. noun another word for heterograft xenograft (zěn’ə-grāft’, zē’nə-) a graft in which the donor and recipient are of different species. compare allograft, autograft.

  • xenolith

    a rock fragment foreign to the igneous rock in which it is embedded. noun a fragment of rock differing in origin, composition, structure, etc, from the igneous rock enclosing it n. xenolith (zěn’ə-lĭth’, zē’nə-) a rock fragment foreign to the igneous m-ss in which it occurs. xenoliths usually become incorporated into a cooling magma body […]

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    also, allotriomorphic. petrography. noting or pertaining to a mineral grain that does not have its characteristic crystalline form but has a form impressed on it by surrounding grains; anhedral. in an unusual form; having a strange form. adjective (of a mineral const-tuent of an igneous rock) not having its characteristic crystal shape because of deforming […]

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