| A | B |
| Anemia | A low level of the oxygen carrying material in the blood |
| colic | Condition in which a baby has intense abdominal pain and cries inconsoably |
| jaundice | A liver condition that makes skin, tissue, and body fluids lookyellow |
| neonatal intensive care unit (NICU) | Heated, completely enclosed beds for newborns who require intensive care |
| pediatrician | Doctor who specializes in the treatment of infants and children |
| neonate | A baby who is one month or younger in age |
| neonatology | Branch of pediatrics concerned with care, development, and diseases of newborns. |
| phenylketonuria (PKU) | A disease that can cause mental retardation if untreated by diet |
| reflexes | automatic, unlearned behaviors |
| sudden infant death syndrome(SIDS) | Condition in which a baby who seems healthy dies without warning in his or her sleep |