183rar 【Limited】

: It could be a typo for a more common scientific designation, such as a specific protein variant (e.g., related to the RAR - Retinoic Acid Receptor family) or a star catalog number.

If you have more context—such as the general field of study (biology, astronomy, computer science) or where you encountered the term—I can help narrow down the search. 183rar

If this term is related to a specific niche, it most likely refers to one of the following: : It could be a typo for a