Simple past tense and past participle of creosote.(verb)
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Use "creosoted" in a sentence
"The hen house was a large ramshackle cage bounded by sagging wire and creosoted posts."
"There™s a V-shaped jump made out of stacked creosoted logs."
"Park development where the so-called house was a desk-size roof of corrugated iron held up at one end by the wall of a toilet and at the other by two creosoted poles."