urocanic acid

noun
uro·ca·nic acid | \ˌyu̇r-ə-ˈkā-nik-, -ˈka- \

Definition of urocanic acid 

: a crystalline acid C6H6N2O2 that is normally present in human skin

First Known Use of urocanic acid

circa 1903, in the meaning defined above

History and Etymology for urocanic acid

ur- entry 1 + canine + -ic; from its being first obtained from the urine of a dog

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The first known use of urocanic acid was circa 1903

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urocanic acid

noun
uro·ca·nic acid | \ˌyu̇r-ə-ˌkā-nik-, -ˌkan-ik- \

Medical Definition of urocanic acid 

: a crystalline acid C6H6N2O2 normally present in human skin that is held to act as a screening agent for ultraviolet radiation

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