Definition of "penicillinase"

penicillinase

noun
countable and uncountable, plural penicillinases
1. (biochemistry) A specific type of beta-lactamase showing specificity for penicillins.
  Quotations
  To date, there have been only 23 confirmed cases of penicillinase-producing gonococcus (totally penicillin-resistant gonorrhea) reported in the United States.
  1976 December 18, Carol S. Ribner, Sanford M. Reder, “Boston's Gay Health Collective Replies to GCN”, in Gay Community News, volume 4, number 25, page 5