epicureanism
- n a doctrine of hedonism that was defended by several ancient Greek philosophers
epicurus
- n Greek philosopher who believed that the world is a random combination of atoms and that pleasure is the highest good (341-270 BC)
epicycle
- n a circle that rolls around (inside or outside) another circle; generates an epicycloid or hypocycloid
epicyclic gear
- n an outer gear that revolves about a central sun gear of an epicyclic train
epicyclic gear train
- n a system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axis
epicyclic train
- n a system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axis