zo·na·tion 
(zō-nāshən)
(zō-nāshən)n.
1. Arrangement or formation in zones; zonate structure.
2. Ecology The distribution of organisms in biogeographic zones.
- superstrate
- superstratum
- superstring
- colonoscope
- colonoscopy
- colony
- colony collapse disorder
- colony-stimulating factor
- colophon
- Colophon
- colophony
- color
- colorability
- colorable
- colorably
- Coloradan
- Colorado
- Colorado
- Coloradoan
- Colorado blue spruce
- Colorado Desert
- Colorado potato beetle
- Colorado River
- Colorado Springs
- colorant