Antenatal Meaning of Antenatal Having to do with the time a female is pregnant, before birth occurs. Also called prenatal. Also See: Anti-CD22 immunotoxin Adrenocorticotropic hormone Acute nonlymphocytic leukemia AML-MRC Aerobic Exercise Afib Atypical mole Anterior Pelvic Exenteration ASCUS Aspirate ALSO SEE: Aprepitant