The Collaborative International Dictionary of English v.0.48:
Gastralgia \Gas*tral"gi*a\, n. [NL., fr. Gr. ?, ?, stomach + ? pain.] (Med.) Pain in the stomach or epigastrium, as in gastric disorders. [1913 Webster]WordNet (r) 3.0 (2006):
gastralgia n 1: an ache localized in the stomach or abdominal region [syn: stomachache, stomach ache, bellyache, gastralgia]