digenesis


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Related to digenesis: Diegesis, diagenesis

di·gen·e·sis

(dī-jen'ĕ-sis),
Reproduction in distinctive patterns in alternate generations, as seen in the nonsexual (invertebrate) and the sexual (vertebrate) cycles of digenetic trematode parasites.
[G. di-, two, + G. genesis, generation]
Farlex Partner Medical Dictionary © Farlex 2012

di·gen·e·sis

(dī-jen'ĕ-sis)
Reproduction in distinctive patterns in alternate generations, as seen in the nonsexual (invertebrate) and the sexual (vertebrate) cycles of digenetic trematode parasites.
[G. di-, two, + G. genesis, generation]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

digenesis

the alternation of a sexual with an asexual generation.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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* The Sirenomelia Sequence.: This is associated with renal agenesis, an absence of both external and internal genital organs (With differentiated gonads: the sex ratio is 3 boys: 1 girl), anal imperforation with absence of a rectum, digenesis of the sacrum to agenesis, sometimes associated with lumbar vertebral digenesis and a variable degree of atrophy and an inconstant fusion of the lower limbs.
Identifications of different cement types helped to categorize different phases of digenesis as early marine shallow burial and deep burial which in turn helped in the hydrocarbon reservoir potential within each facies e.g.
Dandy Walker Malformation: Dandy Walker malformation is the cystic malformation of posterior fossa resulting from a defect in the area membranacea superior and is characterized by triad of cerebellar digenesis, cystic dilation of fourth ventricle and large posterior fossa with superior displacement of the tentorium, torcular and dural sinuses.