English-Finnish translations for epicycle

• episykli

Definition of epicycle

• A small circle whose centre is on the circumference of a larger circle; in Ptolemaic astronomy it was seen as the basis of revolution of the "seven planets", given a fixed central Earth
• Any circle whose circumference rolls around that of another circle, thus creating a hypocycloid or epicycloid

Related words

• epicyclic
• epicycloid
• epicyclic gear