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Related to esoterics: esoterica
a. Intended for or understood by only a small group, especially one with specialized knowledge or interests: an esoteric philosophical doctrine. See Synonyms at mysterious.
b. Relating to or being a small group with specialized knowledge or interests: an esoteric circle.
2. Not known by or suitable for the public; private: Few understood the celebrity's esoteric side.
1. One that is esoteric.
2. esoterics Esoteric matters; esoterica: "The course ... is anything but an exercise in ivory tower esoterics" (Sharon Waxman).