1. An irrational belief that an object, action, or circumstance not logically related to a course of events influences its outcome.
2. 1. A belief, practice, or rite irrationally maintained by ignorance of the laws of nature or by faith in magic or chance.
   2. A fearful or abject state of mind resulting from such ignorance or irrationality.
   3. Idolatry.

[Middle English supersticion, from Old French superstition, from Latin superstitiō, superstitiōn-, from superstes, superstit-, standing over.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.