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Revision: Health and Hygiene >> Aids to Health Biology (English Medium) ICSE Class 9 CISCE

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Definitions [4]

Define health.

Health is defined as the state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity.

Definition: Immunity

The overall ability of the host to fight the disease-causing organisms conferred by the immune system is called immunity.

Define antibiotic.

  • Carbon compounds obtained from some bacteria and fungi for destroying or preventing the growth of harmful micro-organisms are called ‘Antibiotics’.
  • Examples of antibiotics: Penicillin, ampicillin, 
Definition: Antibiotics

Carbon compounds obtained from certain bacteria and fungi that destroy or inhibit the growth of harmful microorganisms and are used in the treatment of infectious diseases is called antibiotics.

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