The term 'young cow' typically refers to a female animal that has not yet reached maturity. However, there are several synonyms that can be used to describe this type of bovine. Some of these include heifer, yearling, calf, and maiden. A heifer is a female cow that hasn't borne a calf yet, while a yearling is a cow that is between one and two years old. Calves are typically less than a year old, while maidens refer to female cows that have not yet had their first calf. Using these and other synonyms can help to add variety and nuance to your writing, all while accurately describing the specific type of young cow in question.