| Abdominal 1. (a.) Pertaining to the belly; ventral; as, the abdominal muscles or cavity. 2. (a.) Having abdominal fins; belonging to the Abdominales; as, abdominal fishes. 3. (n.) A fish of the group Abdominales. Thesaurus Entries anal, appendical, big-bellied, cardiac, cecal, celiac, colic, colonic, coronary, duodenal, enteric, gastric, ileac, intestinal, jejunal, mesogastric, pyloric, rectal, splanchnic, stomachal, stomachic, ventral, ventricular, visceral |