What does auris mean?
'Auris' is the classical Latin word for the ear, preserved in modern English primarily through medicine, anatomy, and scientific nomenclature. Anatomists traditionally divide the ear into the auris externa (outer ear), auris media (middle ear), and auris interna (inner ear), and these Latin phrases remain standard in textbooks and clinical literature. Beyond anatomy, 'auris' surfaces in taxonomy and descriptive biology whenever an ear-like structure needs a Latin label. The word belongs to a wider family of English terms derived from Latin roots connected to hearing and the ear, including 'auricle' — literally a 'little ear' — and the adjective 'auricular'. Because it is a learned borrowing rather than a living English word, 'auris' carries a formal, technical register; everyday conversation simply uses 'ear'. Its plural in Latin is 'aures', though English writers rarely need it outside specialist contexts.
nounThe Latin word for 'ear', retained in modern English chiefly in anatomical and medical terminology and in formal scientific naming.
- The Latin term for the ear, especially the organ of hearing, as used in anatomical nomenclature (e.g., auris externa, the external ear).
- In zoological taxonomy, a Latin generic or adjectival element referring to ear-like structures.
"The surgeon identified the lesion in the auris externa during the examination."
"Anatomists still describe the three regions of the ear using Latin: auris externa, auris media, and auris interna."
"The species was named for its prominent ear-like appendages, drawing on the Latin auris."
As a Latin third-declension feminine noun, 'auris' forms its plural as 'aures'. This plural appears only in scholarly or historical Latin texts; modern English writing typically avoids pluralizing the term at all.
"In classical texts, ailments of both ears are described as affecting the aures."
Every time you say 'auricle', you're speaking Latin for a little ear — because that's exactly what the Romans called your outer ear: a little auris.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of auris
'Auris' comes directly from Latin, where it was the ordinary word for the ear and is attested from the earliest stages of the language. It derives from Proto-Indo-European *h₂ous-, the root behind both Latin 'auris' and the Germanic word 'ear', making them true cognates. The same Latin noun gave rise to the diminutive 'auricula' ('little ear'), which English borrowed as 'auricle', and to the adjective 'auricularis', source of English 'auricular'. Related Latin verbs of hearing, such as 'audire', share the same Indo-European ancestry, linking 'auris' to words like 'audio' and 'auditory'.
Related word forms
How auris is actually used
'Auris' is a learned borrowing: it appears almost exclusively in medical, anatomical, and scientific contexts rather than everyday speech, where 'ear' serves all ordinary purposes. It declines irregularly in Latin (plural 'aures'), so writers using it should treat it as a technical Latinism.
Easily confused with auris
'Aural' is an English adjective relating to the ear or hearing, whereas 'auris' is the Latin noun meaning the ear itself.
'Aurum' is the Latin word for gold (chemical symbol Au), while 'auris' means ear — similar-looking words with unrelated meanings.