Wiktionary
pteroylglutamic acid
n. (context vitamin organic compound English) The old name for folic acid, a polycyclic heterocyclic carboxylic acid of the vitamin B complex, essential for cell growth and reproduction.
WordNet
pteroylglutamic acid
n. a B vitamin that is essential for cell growth and reproduction [syn: vitamin Bc, vitamin M, folate, folic acid, folacin, pteroylmonoglutamic acid]