Simple past tense and past participle of serialize.(verb)
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Use "serialized" in a sentence
"They laid down their stories in serialized installments, like layers of sedimentary rock."
"Offering a work online, whether in serialized format or in an alternate media (e.g., audio), can increase interest and demand for a physical, print product."
"With the increase in serialized shows, these types of books and magazines are making a nice niche for themselves."