iminodiacetic acid

noun
im·​i·​no·​di·​ace·​tic acid | \ ˌim-ə-ˌnō-ˌdī-ə-ˌsēt-ik- How to pronounce iminodiacetic acid (audio) \

Medical Definition of iminodiacetic acid

: an imino acid C4H7NO4 that is the source of several derivatives used to visualize the hepatobiliary tract after labeling with a radioisotope of technetium