thoracic diaphragmOur editors are putting together more complete content — check back in about 20 minutesthoracic diaphragmthoracic diaphragm — noun名詞1. a dome-shaped muscle that separates the chest from the abdomen and aids breathin1.名詞釋義a dome-shaped muscle that separates the chest from the abdomen and aids breathing例句The diaphragm contracts when you inhale.