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Medical Term:


Pronunciation: kom'ple-men-ta'shun


  1. Functional interaction between two defective viruses permitting replication under conditions inhibitory to the single virus.
  2. Interaction between two genetic units, one or both of which are defective, permitting the organism containing these units to function normally, whereas it could not do so if either unit were absent.
© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.