<P> A newborn is , in colloquial use , an infant who is only hours , days , or up to one month old . In medical contexts , newborn or neonate ( from Latin , neonatus , newborn ) refers to an infant in the first 28 days after birth ; the term applies to premature , full term , and postmature infants ; before birth , the term `` fetus '' is used . The term `` infant '' is typically applied to young children between one month and one year of age ; however , definitions may vary and may include children up to two years of age . When a human child learns to walk , the term `` toddler '' may be used instead . </P>
<P> A newborn is , in colloquial use , an infant who is only hours , days , or up to one month old . In medical contexts , newborn or neonate ( from Latin , neonatus , newborn ) refers to an infant in the first 28 days after birth ; the term applies to premature , full term , and postmature infants ; before birth , the term `` fetus '' is used . The term `` infant '' is typically applied to young children between one month and one year of age ; however , definitions may vary and may include children up to two years of age . When a human child learns to walk , the term `` toddler '' may be used instead . </P>
a newborn infant during the first weeks following birth is called a ( n )
a newborn infant during the first weeks following birth is called a ( n )
neonate
neonate