Wiktionary
piki
n. A paper-thin, dry, rolled bread made by the Hopi with nixtamalization blue corn meal.
Wikipedia
Piki
Piki is a bread made from corn meal used in Hopi cuisine.
Usage examples of "piki".
On the floor of this room a structure resembling the piki or paper bread oven of the Tusayan Indians, was found constructed partly of fragments of old and broken metates.
He takes a handful of meal, mixed with piki crumbs, and a little of the crumbled herb they use as tobacco, and these he sprinkles upon the ground, beginning on the west side, passing southward, and so around, the sprinkled line he describes marking the position to be occupied by the walls.
The piki looked revolting but tasted rather good, as did the odd vegetable dishes that came with it.