What is the medical term used for a nostril?

The term "naris" refers specifically to a nostril, highlighting its role as a passage for air in the nasal cavity. In anatomy, "naris" is the singular form, and its plural form is "nares," commonly used in the context of both nostrils. This distinction is important in medical terminology, as it helps specify the part of the nose being referred to in various discussions regarding respiratory function, anatomy, and pathology.

The other terms provided, while related to the nasal and respiratory anatomy, refer to different structures. "Chonae" refers to the posterior openings of the nasal cavity into the throat, "septum" is the structure that divides the two nostrils, and "cavitas" is a general term for cavity or hollow space but does not specifically denote a nostril. Understanding these terms within the context of facial and nasal anatomy can enhance comprehension of their individual functions and relevance in medical discussions.