benzothienobenzothiophene

== English == === Noun === benzothienobenzothiophene (countable and uncountable, plural benzothienobenzothiophenes) (organic chemistry) Any of a family of tetracyclic organic heterocycles composed of two fused benzothiophene groups, especially [1]benzothieno[3,2-b][1]benzothiophene, the basis of organic conductors of electricity