Entry 1 sense Webster, 1913 Accubation /(ăk*kū̇*bā"shŭn)/ · Ac·cu·ba·tion · IPA /ˌɑ.kjuˈbeɪ.ʃən/ 01 n. The act or posture of reclining on a couch, as practiced by the ancients at meals. 1. The act or posture of reclining on a couch, as practiced by the ancients at meals.