abdominal decompression UK /æbˈdɒm.ə.nəl diː.kəmˈpɹɛʃ.ən/US /æbˈdɑm.ə.nəl di.kəmˈpɹɛʃ.ən/ noun1 •During childbirth, a technique in which the abdomen is surrounded by a chamber and has the pressure decreased intermittently, to assist the uterus in its task. formsabdominal decompressions