Treated with or exposed to chloroform, the liquid chemical once infamously used to render people unconscious in old crime stories.
From 'chloroform' + '-ed' (past participle). Chloroform itself comes from 'chloro-' + 'form' (from formic), named for its origin in chlorine and formic compounds.
Chloroform became famous in Victorian crime fiction as the 'knockout drug,' but in reality, it's incredibly dangerous—people can die from a single dose because it causes cardiac arrhythmias, which is why anesthesiologists quickly abandoned it for safer drugs.
Complete word intelligence in one call. Free tier — 50 lookups/day.