from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. With the authority derived from one's office or position: the pope speaking ex cathedra; ex cathedra determinations.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. With authority based on one's rank or office.
- adv. With authority based on one's rank or office.
from the GNU version of the Collaborative International Dictionary of English
- n. in the exercise of one's office; with authority.
from The Century Dictionary and Cyclopedia
- n. See cathedra.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. with the full authority of the office
Latin ex cathedrā : ex, from + cathedrā, ablative of cathedra, chair.(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin "from the (teacher's) chair." (Wiktionary)