1) American bread 
Graham bread was invented by Sylvester Graham in 1829 for his vegetarian diet. The Graham bread was high in fiber, made with non-sifted whole-wheat flour. Graham created a bread free from the chemical additives that were common in white bread at that time such as alum and chlorine. He argued that these chemical additives were unwholesome in that t...
• Bread made of unbolted wheat flour.
Gra'ham bread' [ From Sylvester Graham , a lecturer on dietetics.] Bread made of unbolted wheat flour. [ U. S.] Bartlett. 
[n] - bread made of graham (whole wheat) flour
noun bread made of graham (whole wheat) flour