epicardia

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Related to abdominal part of esophagus: Esophageal hiatus

ep·i·car·di·um

 (ĕp′ĭ-kär′dē-əm)
n. pl. ep·i·car·di·a (-dē-ə)
The inner layer of the pericardium that is in actual contact with the surface of the heart.

[New Latin : epi- + Greek kardiā, heart; see kerd- in Indo-European roots.]

ep′i·car′di·al adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.epicardia - the short part of the esophagus extending downward from the diaphragm to the stomach
passageway, passage - a path or channel or duct through or along which something may pass; "the nasal passages"
esophagus, gullet, oesophagus, gorge - the passage between the pharynx and the stomach