from The American Heritage® Dictionary of the English Language, 4th Edition
- Around; about: circumlunar.
from Wiktionary, Creative Commons Attribution/Share-Alike License
from the GNU version of the Collaborative International Dictionary of English
- A Latin preposition, used as a prefix in many English words, and signifying around or about.
from The Century Dictionary and Cyclopedia
- n. A prefix of Latin origin, meaning ‘round about,’ ‘in a circle,’ ‘on all sides’: frequent in compounds taken from the Latin, or formed in English or other modern tongues. Many such compounds are merely occasional. Only the principal ones are entered in this dictionary.
Latin, from circum, around, accusative of circus, circle; see circle.(American Heritage® Dictionary of the English Language, Fourth Edition)