Main Entry: ¹ac·ces·so·ry

Pronunciation: \ik-ˈses-(ə-)rē, ak-\

Function: adjective

1 : aiding, contributing, or associated in a secondary way: as a : being or functioning as a vitamin <accessory food substances> b : associated in position or function with something (as an organ or lesion) usually of more importance <the testis and accessory male ducts and glands—B. T. Scheer>
2 : supernumerary <accessory spleens>