From Longman Dictionary of Contemporary Englishpreemiepree‧mie /ˈpriːmi/ noun [countable] American English informalMB a premature baby
Examples from the Corpus
preemie• Meant to be born in 1997, she spent her first Christmas in the neonatal intensive care unit with 16 other preemies.• Ludington plans to introduce the therapy into the transitional care unit that caters to preemies at the University of Maryland Medical Center.Origin preemie (1900-2000) premature 