epicycle
/ˈɛpɪˌsaɪkəl/ · noun
Meaning
- 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.
- A ring of atoms joining parts of an already cyclic compound
Etymology / origin
No prose etymology has been added yet.
No ancestor words have been linked yet.
Related words
Descendant words
No descendant words have been linked yet.