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Medical Dictionary

1

fast

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adjective \ˈfast\

Medical Definition of fast

  1. 1:  firmly fixed

  2. 2a:  having a rapid effect <a fast medicine>b:  allowing for the rapid passage of a gas or liquid

  3. 3:  resistant to change (as from destructive action)—used chiefly of organisms and in combination with the agent resisted <acid-fast bacteria>




2

fast

verb

Medical Definition of fast

  1. 1:  to abstain from food

  2. 2:  to eat sparingly or abstain from some foods

  3. transitive verb

  4. :  to deny food to <the patient is fasted and given a mild hypnotic—Lancet>




3

fast

noun

Medical Definition of fast

  1. 1:  the practice of fasting

  2. 2:  a time of fasting





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