Noun, pl. epigastria
1. The upper central region of the abdomen. It is located between the costal margins and the subcostal plane. (wikipedia.org)
2. The upper middle region of the abdomen, between the umbilical and hypochondriac regions. (wiktionary.org)
3. An anatomical term used to refer to the uppermost median region of the abdomen. It is just above the umbilical region of the abdomen. The term epigastrium is used to refer to a region or zone and not to any specific organ. (biology-online.org)
Syn: epigastric region
Word origin: Greek epi = upon, and gaster = belly, hence, the upper median zone of the abdomen.