newborn I. \ˈ ̷ ̷| ̷ ̷\adjective Etymology: Middle English new born 1. a.: recently born < a newborn kitten > b.: affecting or relating to the newborn < the newborn period > < newborn disorders > 2.: born anew < newborn and whole in spirit > II. noun (pluralnewbornornewborns) : a newborn individual : neonate