Simple past tense and past participle of decollate.(verb)
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Use "decollated" in a sentence
"Rumina saharica is one of the land snail species with decollated shells originating from the Mediterranean area."
"And what appeared to us worthy of remark was, that whereas, when a snake was decollated, it was only the tail that continued to wriggle -- when a _worm_ was divided, _all_ the segments writhed in the same way, and manifested an equal irritability; showing the difference between creatures of annulated structure, according as they have or have not a _brain_."
"_European_ merchants at Mogador in danger of being decollated by order of the emperor, on a charge of high-treason, 284."