adventitious

adventitious definition - medical

ad·ven·ti·tious (ădˌvĕn-tĭshˈəs)

adjective
  1. Arising from an external source or occurring in an unusual place or manner; extrinsic.
  2. Occurring accidentally or spontaneously, not caused by heredity.
  3. Adventitial.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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