Topic: HUMAN
| Date: | 1800-1900 |
| Language: | Latin |
| Origin: | immunis, from munis 'ready for service' |
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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.
Once we've had the disease, we're immune for life.2 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.
immune response/reaction
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
4 [not before noun] specially protected from something unpleasant
