Refresher course

noun

Definitions

Noun
  1. 1
    A short course of additional training or updating knowledge of one's profession.

    "Another example of the quality of staff is the percentage of passes achieved by firemen after a refresher course of one week on driving steam locomotives—until recently a necessary qualification for a diesel driver, even within a fully dieselised scheme."

  2. 2
    a course that reviews and updates a topic for those who have not kept abreast of developments wordnet

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