What is parenthetical?

Parenthetical refers to a word, phrase, or clause that is inserted within a sentence but is not essential to the sentence's grammatical structure or meaning. Parentheticals are enclosed within parentheses or commas and provide additional information, clarifications, or asides. They can also add details or context to a sentence. Parentheticals are often used in academic or scientific writing, as well as in informal writing styles, including blogs, social media, and personal emails. However, overuse of parentheticals can make a sentence difficult to read or confusing. It's essential to use them judiciously and only when necessary.