postauricular

(pōst″aw-rikĀ“u-lәr) located or performed behind the auricle of the ear.
Found on http://www.encyclo.co.uk/local/21001

postauricular

Situated behind the auricle (pinna) of the ear, as a postauricular patch (ordinarily referring to a patch of fur differing in color from surrounding fur).
Found on https://www.utep.edu/leb/keys/glossary.htm
No exact match found