Longman Dictionary of Contemporary English homepage

Topic: MEDICINE

Date: 1800-1900
Language: Latin
Origin: immunis, from munis 'ready for service'

immune

adjective
     
im‧mune
1M [not before noun] someone who is immune to a particular disease cannot catch it:
Once we've had the disease, we're immune for life.
2

immune response/reaction

the reaction of the body's immune system to something that is harmful:
HIV is a progressive disease which the immune response ultimately fails to control.
3 [not before noun] not affected by something that happens or is done
immune to
The Labour Party is not immune to new ideas.
4 [not before noun] specially protected from something unpleasant
immune from
The senior members of the group appeared to be immune from arrest.
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