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.
The âneoâ portion of the term means ânewâ and the ânatalâ portion means baby. Like any other science, â-ologyâ means âthe study of.â When used to describe a nurse, the term âneonatal nurseâ means a nurse who works with newborn infants, or a baby nurse. Neonatal nurses are specialized nurses who work with newborns in a wide range of situations.