From Longman Dictionary of Contemporary Englishfolic acidfo‧lic acid /ˌfəʊlɪk ˈæsəd, ˌfɒ- $ ˌfoʊ-, ˌfɑː-/ noun [uncountable] a vitamin found especially in green vegetables, used by the body to produce red blood cells
Examples from the Corpus
folic acid• Doctors can easily check blood levels of B-12 and folic acid, he says.• For several years, doctors have encouraged women who could have children to consume folic acid.• At the time there was little understanding of the role of folic acid in the normal working of the body.• The claims that folic acid can end this scourge may be premature.• So the public-health community wants folic acid added to cereals used in enriched grain products, such as bread and pasta. 