from The Century Dictionary.
- Circumscribed; limited.
- In the Echinoidea as applied to the ambulacra, not continuous from one pole of the body to the other, but confined to the area above the equatorial circumference or ambitus, enlarging at first and subsequently contracting within this space and thus assuming a petaloid outline.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
Sorry, no etymologies found.
With Olaf as centrum and Olaf’s lambtail for his spokes-man circumscript a cyclone.