| a variable cluster of birth defects that may include facial abnormalities, growth deficiency, mental retardation, and other impairments, caused by the mother's consumption of alcohol during pregnancy. Abbreviation: FAS |

| fetal alcohol syndrome n. Abbr. FAS A pattern of birth defects occurring as a result of excessive alcohol consumption by the mother during pregnancy and characterized by growth retardation, cranial, facial, or neural abnormalities, and developmental disabilities. |
fetal alcohol syndrome n.
A complex of birth defects including cardiac, cranial, facial, or neural abnormalities and physical and mental growth retardation, occurring in an infant due to excess alcohol consumption by the mother during pregnancy.
| fetal alcohol syndrome (fē'təl) Pronunciation Key
A syndrome of congenital defects caused by maternal alcohol abuse during pregnancy and characterized by any of various abnormalities, including growth and mental retardation, cranial and facial malformations, and cardiac defects. |