Entry 1 sense Webster, 1913 Splenic /splĕn'-ĭk/ · Splen·ic · IPA /ˈsplinɪk/ 01 a. Of or pertaining to the spleen; lienal; as, the splenic vein. 1. Of or pertaining to the spleen; lienal; as, the splenic vein.(Anat.) Phrases & compounds Splenic apoplexy — See Anthrax, n., 3.