saviour sibling

English

Noun

saviour sibling (plural saviour siblings)

A child, conceived by selected IVF treatment, so as to have compatible tissue that could be used to treat an existing sick brother or sister
- 2008 May 20, Nicholas Watt, The Guardian:
  MPs pushed back the boundaries of science last night when they voted to allow the creation of hybrid embryos, which have a combination of human and animal DNA, as well as "saviour siblings" to save sick children.

Translations

child with compatible tissue to treat a sick brother or sister

French: bébé-médicament (fr) m, bébé médicament (fr) m
Spanish: bebé medicamento m

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