periarteritis periarterial plexus • periarteritis nodosa · · · Info · Definitions · Characters · · periarteritis · · Text Latin · · Script 13 · · Length 6 · · Syllables Definitions · · · (noun) inflammation of the outer coat of an artery. · · Noun Definition 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074