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par'a-a•mi•no•ben•zo'ic ac'id



Pronunciation: (par'u-u-mē"nō-ben-zō'ik, -am"u-nō-), [key] Chem., Biochem.
part of the folic acid molecule, a white or yellowish, crystalline, slightly water-soluble solid, C7H7NO2, the para isomer of aminobenzoic acid: used chiefly in the manufacture of dyes and pharmaceuticals and in sunscreens to protect against ultraviolet light. Abbr.: PABA

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

paraparabasis
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