Definition of "nitrified" [nitrified]

• Simple past tense and past participle of nitrify. (verb)

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• "But those bubbles, BP said, were nitrogen, a byproduct of the nitrified foam used in setting the well's surface casing cement, and are expected."
• "While interesting and demonstrative of the instability of nitrified cements, the main message here is that bad cement does not equal blowout."
• "As I've talked about before, based on other accounts, BP ran production casing and cemented with nitrified cement to make a lightweight slurry to keep the well from losing circulation."