synÂ·theÂ·size (sÄ­nâ²thÄ­-sÄ«zâ²) v. synÂ·theÂ·sized, synÂ·theÂ·sizÂ·ing, synÂ·theÂ·sizÂ·es v.tr. 1. To combine so as to form a new, complex product: His works synthesize photography, painting and linguistic devices (Paul Taylor). 2. To form or produce by chemical synthesis. 3. To produce (sound or music) by means of a synthesizer. v.intr. To form a synthesis.
The causes of preterm labor and premature birth are numerous, complex, and only partly understood. Medical, psychosocial, and biological factors may all play a role in preterm labor and birth. There are three main situations in which preterm labor and premature birth may occur: Spontaneous preterm labor and birth.
Precipitate delivery may cause intracranial hemorrhage resulting from a sudden change in pressure on the fetal head during rapid expulsion. It may cause aspiration of amniotic fluid, if unattended at or immediately following delivery.