benzylisoquinoline

== English == === Etymology === From benzyl +‎ isoquinoline. === Noun === benzylisoquinoline (countable and uncountable, plural benzylisoquinolines) (organic chemistry) The structural backbone of many alkaloids with a wide variety of structures, including papaverine, noscapine, codeine, morphine, apomorphine, berberine, protopine and tubocurarine.