sinister

sinister definition - medical

sin·is·ter (sĭnˈĭ-stər)

adjective
  1. Presaging trouble; ominous.
  2. On the left side; left.

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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