The term "nervus ethmoidalis posterior" refers to a specific nerve located in the ethmoid bone of the skull. While there aren't many direct synonyms for this term, it is part of the broader ethmoid nerve complex, which includes other nerves within the same general area. These nerves, such as the anterior ethmoidal nerve and the anterior and posterior ethmoidal arteries, collectively contribute to the sensory innervation of the nasal cavity and surrounding structures. Therefore, when discussing the nervus ethmoidalis posterior, it can be helpful to mention its association with the ethmoid nerve complex to provide a clearer understanding of its function and location.