antibodies
nounUK /ˈæntɪˌbɒdiz/
US /ˈæntɪˌbɑːdiz/
Tiny helpers in your body that fight germs and keep you healthy.
After you get a vaccine, your body makes antibodies to protect you from getting sick.
OTHER MEANINGS
2. Proteins made by the immune system that stick to harmful invaders like viruses and bacteria.
The lab tested her blood to see if she had antibodies against the virus.
3. Substances in blood that can recognize and neutralize specific foreign particles.
Antibodies attach to the surface of the bacteria and mark them for destruction.
4. A sign in the blood that someone has been exposed to a germ before.
Doctors checked for antibodies to learn whether he had the infection in the past.