An abnormality present at birth.
A medical condition arising during development of the fetus and present at birth.
Birth defect; abnormality, especially a structural one, present at birth; may be inherited, acquired during pregnancy, or inflicted as the result of the birth process; two examples are Down’s syndrome and cleft palate resulting from incomplete development and union of the parts forming the palate.
Intrauterine development of an organ or structure that is abnormal in form, structure, or position.