Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Related to congenital immunity: acquired immunity, active immunity, humoral immunity
Etymology: L, congenitus, born with, immunis, free from
the immunity one has at birth that is acquired from the mother's antibodies as they pass through the placenta.
Immunity present at birth. It may be natural or acquired, the latter depending on antibodies received from the mother's blood.
See also: immunity