piastra

Etymology
From the verb.

Noun

 * 1) sheet, plate (of metal etc.)
 * 2) slab
 * 3) hotplate
 * 4)  the firing mechanism in antique firearms
 * 5)  baseplate of a mortar
 * 6)  piastre

Etymology
.

Noun

 * 1) piastre historical Spanish and Spanish-American currency
 * 2) piastre modern denomination in the Middle East