bug

bug definition - medical

bug (bŭg)

noun
  1. A true bug, specifically one having a beaklike structure that allows piercing and sucking.
  2. An insect or similar organism, such as a centipede or an earwig.
  3. A disease-producing microorganism, such as a flu bug.
  4. The illness or disease so produced.
  5. A defect or difficulty, as in a system or design.

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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