Simple past tense and past participle of alloy.(verb)
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Use "alloyed" in a sentence
"I should also say that Bush's "alloyed" nature doesn't annoy me very much at all."
"The number of uninstantiated determinate disjuncts involved by many other determinables such as alloyed with more than one gram but less than a metric ton of gold is certainly huge."
"Gold with 100% purity is soft for use in jewelry, so it is usually mixed with other metals or "alloyed" to make it harder."