Neonatal (adjective)

Relating to or occurring in the first 28 days of life; newborn.

Origin:

From new latin neonatus "newly born", from ne- "new" + natus "born".

Examples:

1. Neonatal intensive care units are designed to care for premature or critically ill newborns.
2. Neonatal mortality rates have decreased greatly with advancements in medical technology.
3. The neonatal period is a crucial time for a baby's growth and development.
4. Neonatal screening tests are performed to identify potential health problems in newborns.
5. Neonatal jaundice is a common condition that affects many newborns.