heteroxanthine

het·er·o·xan·thine

(het'ĕr-ō-zan'thin),
7-Methylxanthine; one of the alloxuric bases in urine, representing end products of purine metabolism.

het·er·o·xan·thine

(het'ĕr-ō-zan'thin)
7-Methylxanthine; one of the alloxuric bases in urine, representing end products of purine metabolism.
References in classic literature ?
Philander is only a trifle less impractical than he.
She could not sleep so filled was her mind with wild schemes of escape though each new one must always be discarded as impractical.
It is only that he is so absolutely impractical that he cannot conceive of so real a thing as death unless nearly certain proof of it is thrust upon him.
He had practised sophistries and quibbled instead of judging; he had criticised effects and done nothing for causes; his head was full of plans such as a political party lays upon the shoulders of a leader,--matters of private interest brought to an orator supposed to have a future, a jumble of schemes and impractical requests.