purine


pu·rine

noun \ˈpyr-ˌēn\

Definition of PURINE

1
:  a crystalline base C5H4N4 that is the parent of compounds of the uric-acid group
2
:  a derivative of purine; especially :  a base (as adenine or guanine) that is a constituent of DNA or RNA

Origin of PURINE

German Purin, from Latin purus pure + New Latin uricus uric (from English uric) + German -in 2-ine
First Known Use: 1898

pu·rine

noun \ˈpy(ə)r-ˌēn\   (Medical Dictionary)

Medical Definition of PURINE

1
: a crystalline base C5H4N4 that is the parent of compounds of the uric-acid group
2
: a derivative of purine; especially : a base (as adenine or guanine) that is a constituent of DNA or RNA

purine

noun    (Concise Encyclopedia)

Any of a class of heterocyclic compounds with a two-ring structure composed of carbon and nitrogen atoms. The simplest member, purine itself (CHN), is not common, but its derivatives with the structure are. Examples are uric acid, caffeine, and two of the nucleotides in nucleic acids, guanine and adenine.

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