ˌ ̷ ̷ ̷ ̷ˈ ̷ ̷rə̇kə, -rēkə noun plural
Etymology: New Latin, from Greek esōterika, neuter plural of esōterikos esoteric (adjective)
1. : esoteric items
such space esoterica as the impacts of primary cosmic rays and micrometeorites — Time
persons not familiar with the esoterica of maneuvering commands may find the pages of such talk both bewildering and monotonous — Walter Karig
an American unfamiliar with billabongs, bonzer, and other Australian esoterica may find it rough going in spots — Lawrence Griswold
2. : pornography