1. A cycle (of expansion and compression) of an idealized reversible heat engine that does work without loss of heat
   - Carnot cycle

Type of: cycle, oscillation

• Pretoria
• pretorial
• pretorian
• pretorium
• pretrial
• pretrial conference
• prettify
• prettily
• prettiness
• pretty
• pretty much
• pretty up
• pretty-pretty
• pretzel
• Preussen
• Prevacid
• prevail
• prevailing
• prevailing party
• prevailing westerly
• prevailing wind
• prevalence
• prevalent
• prevaricate
• prevarication