tetrabromophenolphthalein

noun

tet·​ra·​bro·​mo·​phenolphthalein

"+

: a dye C₂₀H₁₀Br₄O₄ used in the form of its disodium salt in X-ray examination especially of the gall bladder

Word History

Etymology

tetrabrom- + phenolphthalein

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