English edit

 
Chemical structure of secobarbital

Etymology edit

Blend of Seconal (trademark) +‎ pentobarbital.

Pronunciation edit

Noun edit

secobarbital (countable and uncountable, plural secobarbitals)

  1. (pharmacology) A barbiturate C12H18N2O3 that is used chiefly in the form of its bitter hygroscopic sodium salt as a hypnotic and sedative.
    Synonym: (slang) red

Further reading edit