[plural]an international secret society of men, begun in the 17th century, who were involved in mysterious practices involving magic and spirits. There are also modern groups with the same name, especially in the US, who claim to be related to the original Rosicrucians.
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.
Dictionary pictures of the day
Do you know what each of these is called?
Click on any of the pictures above to find out what it is called.