antigen
nounmasculinetécnico/ɐ̃.ti.ˈʒɛ.nju/medium
an·ti·gé·nio
Definition
A foreign substance that, when introduced into the body, triggers the production of specific antibodies.
The rapid test detects the viral antigen in the sample.
The body's immune system recognizes the antigen as a threat.
Common collocations
specific antigenantigen testantigen response
Etymology
Do inglês 'antigen', de 'antibody' + 'generator'.