azulene

== English == === Noun === azulene (countable and uncountable, plural azulenes) (organic chemistry, uncountable) A bicyclic aromatic hydrocarbon containing a five- and a seven-membered fused ring; it is a blue, oily liquid first obtained from the essential oil of wormwood. (organic chemistry, countable) Any of its derivatives. ==== Derived terms ==== ==== Translations ==== ==== Further reading ==== azulene on Wikipedia.Wikipedia