Definition of "premature birth" []

• The birth of an infant prior to the completion of its prenatal development. (noun)
• : Childbirth occurring earlier than 37 completed weeks of gestation, but later than 20th week, which is regarded a miscarriage. (noun)

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• "Michaelis (1798-1848) and Karl Konrad Theodor Litzmann in 1851, and of the oblique oval pelvis by Litzmann in 1853; artificial premature birth in the case of such a pelvis by Spiegelberg in 1870; the manual removal of the placenta in 1853, and prophylaxis against blemorrhoea of the newly born by Crede in 1884; axial traction forceps by"