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Glite Dictionary
caenogenesis

caenogenesis

9.9
New body parts that develop while an embryo grows but were not in its ancestors
  • noun
  • /ˌsiːnəˈdʒɛnɪsɪs/
  • Specialized
translation icon : caenogénesis
  • The evolution of the placenta in mammals is a prime example of caenogenesis, as it introduces new structures absent in their ancestors.

Examples

  • Some scientists argue that placental evolution in mammals can be understood through the concept of caenogenesis.

  • Because caenogenesis adds new features not found in ancestors, it plays a crucial role in evolutionary development.

  • The development of a yolk sac in mammals is an example of caenogenesis in evolutionary history.

  • The concept of caenogenesis is crucial in understanding mammalian evolution.

  • Researchers are studying caenogeneses in various species.

  • In studying caenogenesis, researchers discovered how certain mammals developed unique features that enhance their survival.

  • The phenomenon of caenogenesis illustrates how species can acquire novel adaptations within their evolutionary timelines.

Synonyms

kainogenesis
vscaenogenesis
  • Specialized
9.9

A development in an embryo when it makes new body parts not seen in earlier members of the species

has identical meaning but is a variant spelling or form
cainogenesis
vscaenogenesis
  • Specialized
9.9

The embryo develops new body features that its ancestors did not have

has identical meaning but is a variant spelling or form
kenogenesis
vscaenogenesis
  • Specialized
9.9

The development of new body parts or traits in an embryo that ancestors do not have

has identical meaning but is a variant spelling or form

Antonyms

palingenesis
  • Specialized
9.9

An embryo shows body parts like those of its ancestors

Surface Forms

caenogenesis singular
caenogeneses plural

Morphology

caenogenesis = genesis (opaque) = caeno + genesis

The combining form 'caeno-' (meaning 'new' in Greek) is not a productive or familiar English morpheme for average learners, and the technical biological sense is specialized and not derivable from common vocabulary.

Etymology

Caenogenesis comes from two Greek parts: caeno- meaning 'new' and -genesis meaning 'birth' or 'origin', the same idea you see in genesis and generate. So, caenogenesis is the 'birth' or appearance of new features during an embryo's development, which is why scientists use it for new structures like the placenta.