2. Prefix. cycle ¹
3. Prefix. (chemistry) a cyclic compound ¹
4. Prefix. (meteorology) cyclone ¹
¹ Source: wiktionary.com
Medical Definition of Cyclo-
1. 1. Combining forms relating to a circle or cycle; or denoting an association with the ciliary body. 2. In chemistry, a combining form indicating a continuous molecule, without end, or the formation of such a structure between two parts of a molecule. Origin: G. Kyklos, circle (05 Mar 2000)