Rosicrucian

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A member of an international organization, especially the Ancient Mystic Order Rosae Crucis and the Rosicrucian Order, devoted to the study of ancient mystical, philosophical, and religious doctrines and concerned with the application of these doctrines to modern life.
2. n. A member of any of several secret organizations or orders of the 17th and 18th centuries concerned with the study of religious mysticism and professing esoteric religious beliefs.
3. adj. Of or relating to Rosicrucians or their philosophy.

Century Dictionary and Cyclopedia

1. n. A member of a supposed secret society, said to have originated in the fifteenth century, which combined pretensions to the possession of occult wisdom and gifts with so-called mysteries of physic, astronomy, alchemy, etc. The book describing the Rosicrucians (“Fama Fraternitatis,” published in 1614) is generally regarded as merely an elaborate satire on the charlatanry and credulity of the times. Books of Rosicrucian pretensions were formerly numerous in England as well as in Germany, and several have lately reappeared in the United States. The sect were also styled Brethren or Knights of the Rosy-cross, Rosy-cross Philosophers, etc.
2. Pertaining to the Rosicrucians or their arts.

Wiktionary

1. n. A 'Brother' of the 'Order of the Rose Cross'; a member of the Rosicrucian Order.
2. n. A member of certain modern groups or organizations formed for the study of Rosicrucianism and allied subjects.
3. adj. of teachings mystic, occult or esoteric and related to the philosophy of Rosicrucianism.

GNU Webster's 1913

1. n. One who, in the 17th century and the early part of the 18th, claimed to belong to a secret society of philosophers deeply versed in the secrets of nature, -- the alleged society having existed, it was stated, several hundred years.
2. adj. Of or pertaining to the Rosicrucians, or their arts.

WordNet 3.0

1. n. a member of any of various organizations that subsequently derived from the 17th-century society
2. adj. of or relating to the Rosicrucians
3. n. a member of a secret 17th-century society of philosophers and scholars versed in mystical and metaphysical and alchemical lore