phlorizin

noun

phlo·​ri·​zin

variants or phlorhizin

ˈflōr-ə-zən  ˈflȯr-; flə-ˈrīz-ᵊn 

or phloridzin

ˈflōr-əd-zən  ˈflȯr-; flə-ˈrid-zən 

: a bitter crystalline glucoside C₂₁H₂₄O₁₀ that is extracted from root bark or bark (as of the apple, pear, or cherry), produces glycosuria if injected hypodermically, and is used chiefly in producing experimental diabetes in animals