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Pronunciation: vej'e-ta'shun


  1. The process of growth in plants.
  2. A condition of sluggishness, comparable with the inactivity of plant life.
  3. A growth or excrescence of any sort.
  4. Specifically, a clot, composed largely of fused blood platelets, fibrin, and sometimes microorganisms, adherent to a diseased heart orifice or valve, and often initiated by infection of the structures involved.

[Mod. L. vegetatio, growth]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.