Entry 1 sense Webster, 1913 Gastronomy /găs-trän'-əm-ē/ · Gas·tron·o·my · IPA /ɡæˈstɹɒnəmi/ 01 n. The art or science of good eating; epicurism; the art of good cheer. 1. The art or science of good eating; epicurism; the art of good cheer.