Water is a transparent and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms. Its chemical formula is H2O, meaning that its molecule contains one oxygen and two hydrogen atoms, that are connected by covalent bonds.
1. recently born; called also neonatal. 2. newborn infant. postmature newborn (post-term newborn) post-term infant. premature newborn (preterm newborn) preterm infant.
Neonatal sepsis is any infection involving an infant during the first 28 days of life. Neonatal sepsis is also known as sepsis neonatorum.. The infection may involve the infant globally or may be limited to just one organ (such as the lungs with pneumonia). Learn the risk factors for neonatal sepsis Â».