(in the 17th and 18th centuries) a person who belonged to a secret society laying claim to various forms of occult knowledge and power and professing esoteric principles of religion.
a member of any of several later or modern bodies or societies professing principles derived from or attributed to the earlier Rosicrucians, especially of an organization (Rosicrucian Order or Ancient Mystic Order Rosae Crucis) that is active in America.
of, pertaining to, or characteristic of the Rosicrucians.
1624 (n.), 1662 (adj.), from Mod.L. rosa crucis (DuCange) or crux, Latinization of Ger. Rosenkreuz, Fr. rosecroix, from the secret society's reputed founder Christian Rosenkreuz, said to date from 1484, but not mentioned before 1614.