alvine,a.|ˈælvaɪn| [ad. L. alvīn-us, f.alvus the belly.] Pertaining to the abdomen or its contents. 1754Phil.Trans. XLVIII. 581 As to the natural excretions, the alvine were easy and proper.1871Tyndall Fragm.Sc. (ed. 6) II. xii. 286 Sanguinolent alvine evacuations.