There are several synonyms for the word "gelatinized". One of them is "coagulated", which means to form into a thickened mass or to become solid. Another synonym is "jellied", which refers to something that has become jelly-like or gelatinous in texture. "Solidified" is another synonym for gelatinized, which implies that something has become solid or firm through a process of cooling or hardening. "Set" is another common synonym, which means to become fixed or established in a particular form or shape. In summary, there are several ways to describe something that has undergone a process of gelatinization, each with its own specific connotations and shades of meaning.