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premature

Happening before the expected or normal time, such as a baby born before 37 weeks of pregnancy.

pree-muh-CHOOR adjective

What it means

Used most often for babies born too early: a premature (preterm) infant is born before 37 completed weeks of pregnancy. It also describes other early events, such as premature rupture of membranes (the bag of waters breaking before labor starts) and premature ventricular contractions (early heartbeats).

For the nurse

Premature infants have trouble keeping warm, breathing and feeding, so watch their temperature, breathing and blood sugar closely.

At a glance

Spanishprematuro

Related terms

preterm

Before 37 completed weeks of pregnancy.

infancy

The first year of life, from birth to about 12 months of age.

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