His piercing azure eyes are complemented by a new addition to his appearance: a septum piercing in his nose.
"partition between the nostrils," 1690s, Modern Latin, from Latin saeptum "a fence, enclosure, partition," from neuter past participle of saepire "to hedge in," from saepes "hedge, fence." Related: Septal.
septum sep·tum (sěp'təm)
n. pl. sep·ta (-tə)
A thin partition or membrane dividing two cavities or soft masses of tissue in an organism.
The septum pellucidum.