Simple past tense and past participle of collateralize.(verb)
Secured by a pledge of collateral.(adjective)
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Use "collateralized" in a sentence
"And as Arianna Huffington has often commented, we are now a country that makes things up: speculation in collateralized debt obligations and mortgage-backed securities nearly led to the collapse of our economy in 2008."
"You can invest in collateralized commodities futures and make money off of inflation, if you believe it worthwhile."
"And it begs the question: Why didn't Dodd-Frank do more to limit banks 'use of things like repo markets, in which banks take out short-term collateralized loans?"