Entry 1 sense Webster, 1913 Abdominous · Ab·dom·i·nous · IPA /æbˈdɑm.ə.nəs/ 01 a. Having a protuberant belly; pot-bellied. 1. Having a protuberant belly; pot-bellied. “Gorgonius sits, abdominous and wan, Like a fat squab upon a Chinese fan.” — Cowper.