1) the superintendent of the dining room, a table master.
Part of Speech: noun masculine
From G746 and a compound of G5140 and G2827 (a dinner bed, because composed of three couches); director of the entertainment: - governor (ruler) of the feast.
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 ἀρχιτρίκλινος; click on the second column to search for that grammatical form of the root ἀρχιτρίκλινος; click on the third column to search for that word and grammatical form; click on the total to search for the root ἀρχιτρίκλινος.