1) a chair, a seat
1a) used of the exalted seat occupied by men of eminent rank or influence, as teachers and judges
Part of Speech: noun feminine
From G2596 and the same as G1476; a bench (literally or figuratively): - seat.
|(ἐπὶ τῆς Μωϋσέως καθέδρας καθίζω) be authority on Law of Moses||37.44|
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root καθέδρα; click on the second column to search for that grammatical form of the root καθέδρα; click on the third column to search for that word and grammatical form; click on the total to search for the root καθέδρα.