Noun
an intensive care unit designed with special equipment to care for premature or seriously ill newborn
Source: WordNetAfter undergoing three major operations and spending 139 days in Neonatal Intensive Care Unit (NICU), CJ is now a thriving 16-month old. Source: Internet
Did you hear about the hospital medical people, for example, who stayed behind to care for 19 babies in the NICU (the Neonatal Intensive Care Unit), as Hurricane Laura pounded their community? Source: Internet