sodium amidotrizoate /ˌsoʊ.di.əm ˌæm.ɪd.oʊˌtɹaɪˈzoʊˌeɪt/ noun1 •A salt C₁₁H₉I₃N₂NaO₄ (trademark Hypaque, Gastrografin, Urografin) administered in solution as a radiopaque medium for various forms of radiographic diagnosis.
