1.  piastre(n = noun.quantity) piaster - a fractional monetary unit in Egypt and Lebanon and Sudan and Syria;
is a kind of fractional monetary unit, subunit
is a part of egyptian pound, pound, lebanese pound, pound, pound, sudanese pound, pound, syrian pound

2.  piastre(n = noun.quantity) kurus, piaster - 100 kurus equal 1 lira in Turkey;
is a kind of turkish monetary unit
is a part of lira, turkish lira
has parts: asper

   See Piaster. [1913 Webster]

piastre, n. (US piaster) a small coin and monetary unit of several Middle Eastern countries.

Etymology:
F piastre f. It. piastra (d'argento) plate (of silver), formed as PLASTER