quinoxaline

listen to the pronunciation of quinoxaline
Английский Язык - Английский Язык
A bicyclic heterocycle consisting of a benzene ring fused to that of pyrazine
To wind on a quill, as thread or yarn
A hollow spindle
The bark is finely laminated, and very heavy with alkaline substances, and is
Something having the form of a quill The fold or plain of a ruff
The bark of a rosaceous tree (Quillaja Saponaria), native of Chili
A spindle, or spool, as of reed or wood, upon which the thread for the woof is wound in a shuttle
A roll of dried bark; as, a quill of cinnamon or of cinchona
Any one of a series of complex nitrogenous bases obtained by the union of certain aniline derivatives with glyoxal or with certain ketones
To plaint in small cylindrical ridges, called quillings; as, to quill aruffle
quinoxaline
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