Simple past tense and past participle of vulcanize.(verb)
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Use "vulcanized" in a sentence
"Keith's note: As some of you may know, Mike has been a silent contributor to NASA Watch for years - often as the source of "vulcanized" science officers on the ISS."
"You know, we had this big field, Heidi, and it's all sorted out, it broke up, it was kind of vulcanized, and people came to him but it was too late."
"Experimentation with materials such as vulcanized fibre, wicker and lightweight alloys began."