Plaque

  1. Plaque (plax) in dermatology – a flat large papule;
  2. Plaque in microbiology (synonyms: a phage plaque, colony of a phage negative) – the bacterial lawn located on the site of a dense medium on which a lysis (destruction) of bacterial culture or lack of its growth owing to hit of a particle of a phage (virus) or the bacterium infected with it is observed.
 
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