Alternative form of attar

A male given name from the Germanic languages. / An unincorporated community in Clark County, Indiana. / A town in Cattaraugus County, New York.

plural of otto

The basic thermodynamic cycle of the normal four-stroke internal combustion engine: isentropic compression, constant-volume heat addition, isentropic expansion, and constant-volume heat rejection.

plural of Otto engine

An engine using the Otto cycle.